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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-anion-standard-100-ppm-f-cl-br-so-n-from-no-n-from-no-p-from-po-ricmix59-500a</loc>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-anion-standard-1000-ppm-fluoride-chloride-nitrate-bromide-nitrite-phosphate-and-sulfate-ricmix50-100a</loc>
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    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/quinhydrone-rdcq0020-100c2</loc>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-bicarbonate-acs-reagent-grade-rdcs0300-500b1</loc>
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    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/hydrospec-solvent-c-medium-for-one-and-two-component-volumetric-titrations-with-chloroform-rk330000-1c</loc>
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    <changefreq>daily</changefreq>
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      <image:caption>HydroSpec Solvent C Medium for One and Two Component Volumetric Titrations with Chloroform - RK330000-1C</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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      <image:title>HydroSpec Acid Buffer For titrating strong acids with volumetric solutions - RK500000-6x1C</image:title>
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  <url>
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      <image:title>HydroSpec Methanol Accelerate Medium for One Component Volumetric Titrations - RK300000-6x1C</image:title>
      <image:caption>HydroSpec Methanol Accelerate Medium for One Component Volumetric Titrations - RK300000-6x1C</image:caption>
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  </url>
  <url>
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    <changefreq>daily</changefreq>
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      <image:title>ICP-MS Calibration Standard 1 - RICPMS1-100</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-anion-standard-1000-ppm-f-cl-no-no-br-po-so-ricmix45-500a</loc>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-thiocyanate-acs-reagent-grade-rdcp0730-10f4</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:title>Matrix Modifier, 2.0% Mg (20,000 ppm Mg) - MMMG20KN-100</image:title>
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  <url>
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    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Sodium Bisulfite, ACS Reagent Grade - RDCS0325-500C2</image:title>
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  <url>
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    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>ICP-MS Calibration Standard 2 - RICPMS2-1000</image:title>
      <image:caption>ICP-MS Calibration Standard 2 - RICPMS2-1000</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/hydrospec-solvent-cx-medium-for-one-and-two-component-volumetric-titrations-with-chloroform-and-xylene-rk320000-1c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1c_47676782-80a2-4a90-bd4b-2a9779815ec7.png?v=1776330058</image:loc>
      <image:title>HydroSpec Solvent CX Medium for One and Two Component Volumetric Titrations with Chloroform and Xylene - RK320000-1C</image:title>
      <image:caption>HydroSpec Solvent CX Medium for One and Two Component Volumetric Titrations with Chloroform and Xylene - RK320000-1C</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-standard-2-ricp7010-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>ICP Standard 2 - RICP7010-1N</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/hydrospec-solvent-c-medium-for-one-and-two-component-volumetric-titrations-with-chloroform-rk330000-6x1c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>HydroSpec Solvent C Medium for One and Two Component Volumetric Titrations with Chloroform - RK330000-6x1C</image:title>
      <image:caption>HydroSpec Solvent C Medium for One and Two Component Volumetric Titrations with Chloroform - RK330000-6x1C</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-bstfa-with-1-tmcs-no-bistrimethylsilyltrifluoroacetamide-rmb1202t-10x1c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>ProteoSpec? BSTFA with 1% TMCS N,O-Bis(trimethylsilyl)trifluoroacetamide - RMB1202T-10x1C2</image:title>
      <image:caption>ProteoSpec BSTFA with 1% TMCS N,O-Bis(trimethylsilyl)trifluoroacetamide - RMB1202T-10x1C2</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-bicarbonate-technical-grade-rdcs0320-50lb</loc>
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    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/matrix-modifier-02-pd-2000-ppm-pd-mmpd2kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
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    <loc>https://labproinc2.myshopify.com/products/proteospec-mtbstfa-with-1-tbdmcs-n-tert-butyldimethylsilyl-n-methyltrifluoroacetamide-rmb1207t-10x1c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_bd29ee50-b42a-42ad-a9e5-15859162deac.png?v=1776330070</image:loc>
      <image:title>ProteoSpec? MTBSTFA with 1% TBDMCS N-(tert-Butyldimethylsilyl)-N-methyltrifluoroacetamide - RMB1207T-10x1C2</image:title>
      <image:caption>ProteoSpec MTBSTFA with 1% TBDMCS N-(tert-Butyldimethylsilyl)-N-methyltrifluoroacetamide - RMB1207T-10x1C2</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/aluminum-icp-ms-standard-1000-ppm-al-in-3-hno-msal1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_da3f5cdb-a288-4679-b33a-8c9204a603d8.png?v=1776330068</image:loc>
      <image:title>Aluminum ICP-MS Standard, 1000 ppm Al in 3% HNO? - MSAL1KN-100</image:title>
      <image:caption>Aluminum ICP-MS Standard, 1000 ppm Al in 3% HNO? - MSAL1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/bismuth-icp-ms-standard-1000-ppm-bi-in-3-hno-msbi1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ec7d6b49-0971-45ca-83c5-e83985f82b49.png?v=1776330072</image:loc>
      <image:title>Bismuth ICP-MS Standard, 1000 ppm Bi in 3% HNO? - MSBI1KN-100</image:title>
      <image:caption>Bismuth ICP-MS Standard, 1000 ppm Bi in 3% HNO? - MSBI1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-n-hydroxysuccinimide-nhs-rmb13504-25c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_76b7953a-6fbb-4956-a269-d75f11af8462.png?v=1776330070</image:loc>
      <image:title>ProteoSpec? N-Hydroxysuccinimide (NHS) - RMB13504-25C2</image:title>
      <image:caption>ProteoSpec N-Hydroxysuccinimide (NHS) - RMB13504-25C2</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-icp-ms-standard-1000-ppm-ca-in-3-hno-msca1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_98edd261-69d1-47ab-8816-9e2d9cbc1a4a.png?v=1776330069</image:loc>
      <image:title>Calcium ICP-MS Standard, 1000 ppm Ca in 3% HNO? - MSCA1KN-100</image:title>
      <image:caption>Calcium ICP-MS Standard, 1000 ppm Ca in 3% HNO? - MSCA1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/laboratory-performance-check-method-20011-rlpc2-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9cb9469c-3c35-4a56-abf0-8de1125d7c49.png?v=1776330068</image:loc>
      <image:title>Laboratory Performance Check, Method 200.11 - RLPC2-100</image:title>
      <image:caption>Laboratory Performance Check, Method 200.11 - RLPC2-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/iron-icp-ms-standard-1000-ppm-fe-in-3-hno-msfe1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_11a9467c-296d-4e75-b403-2f0fbc99dec3.png?v=1776330067</image:loc>
      <image:title>Iron ICP-MS Standard, 1000 ppm Fe in 3% HNO? - MSFE1KN-100</image:title>
      <image:caption>Iron ICP-MS Standard, 1000 ppm Fe in 3% HNO? - MSFE1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/gold-icp-ms-standard-1000-ppm-au-in-3-hcl-msau1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ec94df5a-d16f-4155-9188-999cc43eb2c4.png?v=1776330069</image:loc>
      <image:title>Gold ICP-MS Standard, 1000 ppm Au in 3% HCl - MSAU1KH-100</image:title>
      <image:caption>Gold ICP-MS Standard, 1000 ppm Au in 3% HCl - MSAU1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-mtbstfa-n-tert-butyldimethylsilyl-n-methyltrifluoroacetamide-rmb12107-10x1c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_839a3730-3487-4151-b9f3-b46a832462f3.png?v=1776330070</image:loc>
      <image:title>ProteoSpec? MTBSTFA N-(tert-Butyldimethylsilyl)-N-methyltrifluoroacetamide - RMB12107-10x1C2</image:title>
      <image:caption>ProteoSpec MTBSTFA N-(tert-Butyldimethylsilyl)-N-methyltrifluoroacetamide - RMB12107-10x1C2</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-icp-ms-standard-1000-ppm-cu-in-3-hno-mscu1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ac06eaa8-a18b-4a78-86ac-8241638e59e4.png?v=1776330069</image:loc>
      <image:title>Copper ICP-MS Standard, 1000 ppm Cu in 3% HNO? - MSCU1KN-100</image:title>
      <image:caption>Copper ICP-MS Standard, 1000 ppm Cu in 3% HNO? - MSCU1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/matrix-modifier-5-ni-50000-ppm-ni-mmni50kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e9d0ed84-44c1-4f69-97d9-58276cdca50c.png?v=1776330075</image:loc>
      <image:title>Matrix Modifier, 5% Ni (50,000 ppm Ni) - MMNI50KN-50</image:title>
      <image:caption>Matrix Modifier, 5% Ni (50,000 ppm Ni) - MMNI50KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-pentafluoropropionic-anhydride-pfpa-rmb12202-10x1c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_87949415-3c74-4302-8171-c64245c8f6df.png?v=1776330070</image:loc>
      <image:title>ProteoSpec? Pentafluoropropionic Anhydride, PFPA - RMB12202-10x1C2</image:title>
      <image:caption>ProteoSpec Pentafluoropropionic Anhydride, PFPA - RMB12202-10x1C2</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-nn-dicyclohexylurea-rmb13502-5c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_02a223d9-b348-40cc-93ed-67c4fb1443fa.png?v=1776330069</image:loc>
      <image:title>ProteoSpec? N,N-Dicyclohexylurea - RMB13502-5C</image:title>
      <image:caption>ProteoSpec N,N-Dicyclohexylurea - RMB13502-5C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/matrix-modifier-10-pd-10000-ppm-pd-mmpd10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c719d842-88a9-49d4-87f7-9c16e51cbae2.png?v=1776330070</image:loc>
      <image:title>Matrix Modifier, 1.0% Pd (10,000 ppm Pd) - MMPD10KN-100</image:title>
      <image:caption>Matrix Modifier, 1.0% Pd (10,000 ppm Pd) - MMPD10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/magnesium-icp-standard-10000-ppm-mg-in-5-hno-pmg10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_def2556d-e7ed-4f6b-b8c9-2a968f495df9.png?v=1776330070</image:loc>
      <image:title>Magnesium ICP Standard, 10,000 ppm Mg in 5% HNO? - PMG10KN-100</image:title>
      <image:caption>Magnesium ICP Standard, 10,000 ppm Mg in 5% HNO? - PMG10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/arsenic-icp-ms-standard-1000-ppm-as-in-3-hno-msas1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_21a2f92d-f533-43be-8580-3c39cb76bc84.png?v=1776330070</image:loc>
      <image:title>Arsenic ICP-MS Standard, 1000 ppm As in 3% HNO? - MSAS1KN-100</image:title>
      <image:caption>Arsenic ICP-MS Standard, 1000 ppm As in 3% HNO? - MSAS1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mobile-phase-buffer-solution-5-rmpb5000-4c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4c_4e9b3696-05df-490a-a165-23d3f814b69d.png?v=1776330071</image:loc>
      <image:title>Mobile Phase Buffer Solution 5 - RMPB5000-4C</image:title>
      <image:caption>Mobile Phase Buffer Solution 5 - RMPB5000-4C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hydrospec-coulometric-ag-general-purpose-anolyte-solution-for-cells-with-or-without-diaphragm-rk100000-500c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500c_2a8f0cd4-2a63-4455-a6b1-555964952ca3.png?v=1776330071</image:loc>
      <image:title>HydroSpec Coulometric AG General Purpose Anolyte Solution for Cells With or Without Diaphragm - RK100000-500C</image:title>
      <image:caption>HydroSpec Coulometric AG General Purpose Anolyte Solution for Cells With or Without Diaphragm - RK100000-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/matrix-modifier-2-wv-ammonium-nitrate-in-2-vv-hno-mman20kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e09f1867-a50e-49e3-8600-51350d3a7872.png?v=1776330072</image:loc>
      <image:title>Matrix Modifier, 2% (w/v) Ammonium Nitrate in 2% (v/v) HNO? - MMAN20KN-100</image:title>
      <image:caption>Matrix Modifier, 2% (w/v) Ammonium Nitrate in 2% (v/v) HNO? - MMAN20KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-icp-ms-standard-10000-ppm-ca-in-5-hno-msca10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4f70b298-ec69-4135-8e8d-6bae7aa60765.png?v=1776330070</image:loc>
      <image:title>Calcium ICP-MS Standard, 10,000 ppm Ca in 5% HNO? - MSCA10KN-100</image:title>
      <image:caption>Calcium ICP-MS Standard, 10,000 ppm Ca in 5% HNO? - MSCA10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-heptafluorobutyric-anhydride-hfaa-rmb12203-10x1c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_89395ad8-ca27-4240-813a-f8c3acdc9214.png?v=1776330073</image:loc>
      <image:title>ProteoSpec? Heptafluorobutyric Anhydride, HFAA - RMB12203-10x1C2</image:title>
      <image:caption>ProteoSpec Heptafluorobutyric Anhydride, HFAA - RMB12203-10x1C2</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/bismuth-icp-standard-10000-ppm-bi-in-5-hno-pbi10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e8c07abb-2ba1-443d-a3f8-d18d3edfa893.png?v=1776330071</image:loc>
      <image:title>Bismuth ICP Standard, 10,000 ppm Bi in 5% HNO? - PBI10KN-500</image:title>
      <image:caption>Bismuth ICP Standard, 10,000 ppm Bi in 5% HNO? - PBI10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/bismuth-icp-standard-10000-ppm-bi-in-5-hno-pbi10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_339ccd3f-3dc5-4b7c-a2ac-8ac9901e22d0.png?v=1776330072</image:loc>
      <image:title>Bismuth ICP Standard, 10,000 ppm Bi in 5% HNO? - PBI10KN-50</image:title>
      <image:caption>Bismuth ICP Standard, 10,000 ppm Bi in 5% HNO? - PBI10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mercury-icp-ms-standard-10000-ppm-hg-in-10-hno-mshg10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b9e38cc7-3ecc-4417-95ef-c86284d6aa82.png?v=1776330076</image:loc>
      <image:title>Mercury ICP-MS Standard, 10,000 ppm Hg in 10% HNO? - MSHG10KN-100</image:title>
      <image:caption>Mercury ICP-MS Standard, 10,000 ppm Hg in 10% HNO? - MSHG10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cobalt-icp-ms-standard-1000-ppm-co-in-3-hno-msco1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_58525c0a-2b14-48fe-bbd4-421c08851066.png?v=1776330073</image:loc>
      <image:title>Cobalt ICP-MS Standard, 1000 ppm Co in 3% HNO? - MSCO1KN-100</image:title>
      <image:caption>Cobalt ICP-MS Standard, 1000 ppm Co in 3% HNO? - MSCO1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/indium-icp-ms-standard-1000-ppm-in-in-3-hno-msin1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8668c3c0-34a7-4945-bfa3-e5e0546a3263.png?v=1776330072</image:loc>
      <image:title>Indium ICP-MS Standard, 1000 ppm In in 3% HNO? - MSIN1KN-100</image:title>
      <image:caption>Indium ICP-MS Standard, 1000 ppm In in 3% HNO? - MSIN1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/boron-icp-standard-1000-ppm-b-in-hotr-nhoh-pb1kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_60ac3f18-69cc-463f-8531-46b343032365.png?v=1776330071</image:loc>
      <image:title>Boron ICP Standard, 1000 ppm B in H?O/tr NH?OH - PB1KW-500</image:title>
      <image:caption>Boron ICP Standard, 1000 ppm B in H?O/tr NH?OH - PB1KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/iron-icp-ms-standard-10000-ppm-fe-in-5-hno-msfe10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_99a2340a-43c1-415b-9902-1e32eddaa91e.png?v=1776330071</image:loc>
      <image:title>Iron ICP-MS Standard, 10,000 ppm Fe in 5% HNO? - MSFE10KN-100</image:title>
      <image:caption>Iron ICP-MS Standard, 10,000 ppm Fe in 5% HNO? - MSFE10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-icp-ms-standard-10000-ppm-cd-in-5-hno-mscd10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_01298256-aece-4748-8cf2-3323c057adb6.png?v=1776330072</image:loc>
      <image:title>Cadmium ICP-MS Standard, 10,000 ppm Cd in 5% HNO? - MSCD10KN-100</image:title>
      <image:caption>Cadmium ICP-MS Standard, 10,000 ppm Cd in 5% HNO? - MSCD10KN-100</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-ms-calibration-standard-1r-method-2008-94-rmscal1r-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_606eddfb-c08c-4365-a583-2ba380ff6a4b.png?v=1776330071</image:loc>
      <image:title>ICP-MS Calibration Standard 1R, Method 200.8 (94) - RMSCAL1R-100</image:title>
      <image:caption>ICP-MS Calibration Standard 1R, Method 200.8 (94) - RMSCAL1R-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/barium-icp-standard-1000-ppm-ba-in-3-hno-pba1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_69e0b265-c718-419f-86b6-0785cf00e84c.png?v=1776330073</image:loc>
      <image:title>Barium ICP Standard, 1000 ppm Ba in 3% HNO? - PBA1KN-500</image:title>
      <image:caption>Barium ICP Standard, 1000 ppm Ba in 3% HNO? - PBA1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-mbtfa-n-methyl-bistrifluoroacetamide-rmb12204-10x1c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_9be79655-5d58-4a48-b6f0-fc7a7c5ab38b.png?v=1776330075</image:loc>
      <image:title>ProteoSpec? MBTFA N-Methyl-bis(trifluoroacetamide) - RMB12204-10x1C2</image:title>
      <image:caption>ProteoSpec MBTFA N-Methyl-bis(trifluoroacetamide) - RMB12204-10x1C2</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/magnesium-icp-ms-standard-1000-ppm-mg-in-3-hno-msmg1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6b300e80-30dc-4787-872d-58d727eb5c20.png?v=1776330074</image:loc>
      <image:title>Magnesium ICP-MS Standard, 1000 ppm Mg in 3% HNO? - MSMG1KN-100</image:title>
      <image:caption>Magnesium ICP-MS Standard, 1000 ppm Mg in 3% HNO? - MSMG1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-ms-calibration-standard-2a-method-2008-rmscal2a-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4a7e84fd-af6f-491d-870e-a93a08b52069.png?v=1776330074</image:loc>
      <image:title>ICP-MS Calibration Standard 2A, Method 200.8 - RMSCAL2A-100</image:title>
      <image:caption>ICP-MS Calibration Standard 2A, Method 200.8 - RMSCAL2A-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-dss-crosslinker-disuccinimidyl-octanedioate-rmb13305-50cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_72fb31fc-d1b6-42f6-977a-07fb651b6b33.png?v=1776330075</image:loc>
      <image:title>ProteoSpec? DSS Crosslinker Disuccinimidyl octanedioate - RMB13305-50CM</image:title>
      <image:caption>ProteoSpec DSS Crosslinker Disuccinimidyl octanedioate - RMB13305-50CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/barium-icp-standard-1000-ppm-ba-in-3-hno-pba1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_89f12a85-58a6-4ad0-af68-9ce08b9b227f.png?v=1776330075</image:loc>
      <image:title>Barium ICP Standard, 1000 ppm Ba in 3% HNO? - PBA1KN-100</image:title>
      <image:caption>Barium ICP Standard, 1000 ppm Ba in 3% HNO? - PBA1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-icp-standard-100-ppm-ca-in-dilute-hno-rpca01kn-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6799985a-53fc-4fba-81bd-ce1a04a3bdde.png?v=1776330075</image:loc>
      <image:title>Calcium ICP Standard, 100 ppm Ca in dilute HNO? - RPCA01KN-100N</image:title>
      <image:caption>Calcium ICP Standard, 100 ppm Ca in dilute HNO? - RPCA01KN-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-egs-crosslinker-ethylene-glycol-bissuccinimidyl-succinate-rmb13308-50cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_bae41802-37f5-4a0d-903b-087a649b3944.png?v=1776330074</image:loc>
      <image:title>ProteoSpec? EGS Crosslinker Ethylene glycol bis(succinimidyl succinate) - RMB13308-50CM</image:title>
      <image:caption>ProteoSpec EGS Crosslinker Ethylene glycol bis(succinimidyl succinate) - RMB13308-50CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mercury-icp-ms-standard-1000-ppm-hg-in-3-hno-mshg1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c3018886-8890-4f2b-b13a-18edd6f01bab.png?v=1776330076</image:loc>
      <image:title>Mercury ICP-MS Standard, 1000 ppm Hg in 3% HNO? - MSHG1KN-100</image:title>
      <image:caption>Mercury ICP-MS Standard, 1000 ppm Hg in 3% HNO? - MSHG1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-trifluoroacetic-anhydride-tfaa-rmb12201-10x1c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_ce3df5c0-97e1-49dc-8c07-ac71a5542737.png?v=1776330075</image:loc>
      <image:title>ProteoSpec? Trifluoroacetic Anhydride (TFAA) - RMB12201-10x1C2</image:title>
      <image:caption>ProteoSpec Trifluoroacetic Anhydride (TFAA) - RMB12201-10x1C2</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/bismuth-icp-standard-1000-ppm-bi-in-3-hno-pbi1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d3ce19fb-a522-42ca-bc58-93ba7149aefd.png?v=1776330076</image:loc>
      <image:title>Bismuth ICP Standard, 1000 ppm Bi in 3% HNO? - PBI1KN-500</image:title>
      <image:caption>Bismuth ICP Standard, 1000 ppm Bi in 3% HNO? - PBI1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-sulfo-nhs-acetate-sulfosuccinimidyl-acetate-rmb14103-100cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_1b524061-e1a8-4116-a4ab-1a8a8085dfeb.png?v=1776330077</image:loc>
      <image:title>ProteoSpec? Sulfo-NHS Acetate Sulfosuccinimidyl acetate - RMB14103-100CM</image:title>
      <image:caption>ProteoSpec Sulfo-NHS Acetate Sulfosuccinimidyl acetate - RMB14103-100CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/manganese-icp-ms-standard-1000-ppm-mn-in-3-hno-msmn1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_485e217a-1ce8-4d6c-a7e4-6e5efcf3683c.png?v=1776330076</image:loc>
      <image:title>Manganese ICP-MS Standard, 1000 ppm Mn in 3% HNO? - MSMN1KN-100</image:title>
      <image:caption>Manganese ICP-MS Standard, 1000 ppm Mn in 3% HNO? - MSMN1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-sulfo-nhs-biotin-biotinyl-n-hydroxysulfosuccinimde-rmb14205-100cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_78065914-a552-49ed-90bf-b59fbe3b6981.png?v=1776330077</image:loc>
      <image:title>ProteoSpec? Sulfo-NHS Biotin Biotinyl-N-hydroxysulfosuccinimde - RMB14205-100CM</image:title>
      <image:caption>ProteoSpec Sulfo-NHS Biotin Biotinyl-N-hydroxysulfosuccinimde - RMB14205-100CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-icp-standard-1000-ppm-cd-in-3-hno-pcd1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_da13ab1a-ca63-4b93-b02d-d7969a79420c.png?v=1776330076</image:loc>
      <image:title>Cadmium ICP Standard, 1000 ppm Cd in 3% HNO? - PCD1KN-500</image:title>
      <image:caption>Cadmium ICP Standard, 1000 ppm Cd in 3% HNO? - PCD1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/boron-icp-standard-10000-ppm-b-in-ho-pb10kw-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_29fba757-b31c-4b72-9146-0c193e11e744.png?v=1776330075</image:loc>
      <image:title>Boron ICP Standard, 10,000 ppm B in H?O - PB10KW-50</image:title>
      <image:caption>Boron ICP Standard, 10,000 ppm B in H?O - PB10KW-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-icp-standard-10000-ppm-cd-in-5-hno-pcd10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_058f9799-30fa-4507-88f5-263ce41b89cc.png?v=1776330075</image:loc>
      <image:title>Cadmium ICP Standard, 10,000 ppm Cd in 5% HNO? - PCD10KN-500</image:title>
      <image:caption>Cadmium ICP Standard, 10,000 ppm Cd in 5% HNO? - PCD10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-bs3-crosslinker-bis-sulfosuccinimidyl-suberate-rmb13306-50cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_1cddc3e0-2c0d-423d-9f7f-abae066c58d5.png?v=1776330077</image:loc>
      <image:title>ProteoSpec? BS3 Crosslinker Bis-sulfosuccinimidyl suberate - RMB13306-50CM</image:title>
      <image:caption>ProteoSpec BS3 Crosslinker Bis-sulfosuccinimidyl suberate - RMB13306-50CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/matrix-modifier-02-pd-2000-ppm-pd-mmpd2kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d8d5e75c-ad2e-4045-8bca-734675b31aab.png?v=1776330077</image:loc>
      <image:title>Matrix Modifier, 0.2% Pd (2000 ppm Pd) - MMPD2KN-500</image:title>
      <image:caption>Matrix Modifier, 0.2% Pd (2000 ppm Pd) - MMPD2KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-icp-standard-1000-ppm-cd-in-3-hno-pcd1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_aed931ca-0cd3-4ea2-96f2-f09b75caf3c6.png?v=1776330075</image:loc>
      <image:title>Cadmium ICP Standard, 1000 ppm Cd in 3% HNO? - PCD1KN-100</image:title>
      <image:caption>Cadmium ICP Standard, 1000 ppm Cd in 3% HNO? - PCD1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-ms-internal-standard-1-method-2008-rmsis1-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1a89e0a1-8472-4c6f-a9b6-51e9bd38d19f.png?v=1776330081</image:loc>
      <image:title>ICP-MS Internal Standard 1, Method 200.8 - RMSIS1-100</image:title>
      <image:caption>ICP-MS Internal Standard 1, Method 200.8 - RMSIS1-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-sulfo-nhs-sulfo-n-hydroxysuccinimide-nhs-rmb13505-50cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_9e4ba533-8d7d-4736-b9d5-ac3712e9e385.png?v=1776330076</image:loc>
      <image:title>ProteoSpec? Sulfo-NHS Sulfo-N-Hydroxysuccinimide (NHS) - RMB13505-50CM</image:title>
      <image:caption>ProteoSpec Sulfo-NHS Sulfo-N-Hydroxysuccinimide (NHS) - RMB13505-50CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/boron-icp-ms-standard-1000-ppm-b-in-hotr-nhoh-msb1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_486bfe03-bf27-496e-9545-93341a6811d7.png?v=1776330079</image:loc>
      <image:title>Boron ICP-MS Standard, 1000 ppm B in H?O/tr NH?OH - MSB1KW-100</image:title>
      <image:caption>Boron ICP-MS Standard, 1000 ppm B in H?O/tr NH?OH - MSB1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-citraconic-anhydride-rmb14105-25c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_9bf7beb7-08a9-47e6-9cf7-d0da54e50871.png?v=1776330078</image:loc>
      <image:title>ProteoSpec? Citraconic Anhydride - RMB14105-25C2</image:title>
      <image:caption>ProteoSpec Citraconic Anhydride - RMB14105-25C2</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-icp-ms-standard-10000-ppm-cu-in-5-hno-mscu10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6b357c46-1a61-43a6-830f-a9dbc1e654c5.png?v=1776330077</image:loc>
      <image:title>Copper ICP-MS Standard, 10,000 ppm Cu in 5% HNO? - MSCU10KN-100</image:title>
      <image:caption>Copper ICP-MS Standard, 10,000 ppm Cu in 5% HNO? - MSCU10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/barium-icp-standard-10000-ppm-ba-in-5-hno-pba10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1ea7e6f0-79a4-4cd7-bc00-231591aa864a.png?v=1776330080</image:loc>
      <image:title>Barium ICP Standard, 10,000 ppm Ba in 5% HNO? - PBA10KN-500</image:title>
      <image:caption>Barium ICP Standard, 10,000 ppm Ba in 5% HNO? - PBA10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-sulfo-nhs-ss-biotin-sulfosuccinimidyl-2-biotinamido-ethyl-1-3-dithiopropionate-rmb14207-100cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_69001358-dfbd-4776-88c4-af4f2d3b5ff8.png?v=1776330078</image:loc>
      <image:title>ProteoSpec? Sulfo-NHS-SS-Biotin Sulfosuccinimidyl 2-(biotinamido)-ethyl-1-3?-dithiopropionate - RMB14207-100CM</image:title>
      <image:caption>ProteoSpec Sulfo-NHS-SS-Biotin Sulfosuccinimidyl 2-(biotinamido)-ethyl-1-3-dithiopropionate - RMB14207-100CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-3-icp-epa-2007-version-44-rmcal3-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_7f578d36-7003-4877-a4e7-3b9c60203d6d.png?v=1776330075</image:loc>
      <image:title>Mixed Calibration Standard 3, ICP, EPA 200.7 version 4.4 - RMCAL3-100</image:title>
      <image:caption>Mixed Calibration Standard 3, ICP, EPA 200.7 version 4.4 - RMCAL3-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/beryllium-icp-standard-1000-ppm-be-in-3-hno-pbe1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_063e022e-394c-47bb-9869-0521061c5f58.png?v=1776330075</image:loc>
      <image:title>Beryllium ICP Standard, 1000 ppm Be in 3% HNO? - PBE1KN-100</image:title>
      <image:caption>Beryllium ICP Standard, 1000 ppm Be in 3% HNO? - PBE1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/matrix-modifier-05-pd-5000-ppm-pd-mmpd5kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c1611a5f-ecdb-48f5-b302-9249d1988664.png?v=1776330077</image:loc>
      <image:title>Matrix Modifier, 0.5% Pd (5,000 ppm Pd) - MMPD5KN-50</image:title>
      <image:caption>Matrix Modifier, 0.5% Pd (5,000 ppm Pd) - MMPD5KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/manganese-icp-standard-10000-ppm-mn-in-5-hno-pmn10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a2db17d4-d648-4a8c-8a6e-b74380ac4d66.png?v=1776330079</image:loc>
      <image:title>Manganese ICP Standard, 10,000 ppm Mn in 5% HNO? - PMN10KN-100</image:title>
      <image:caption>Manganese ICP Standard, 10,000 ppm Mn in 5% HNO? - PMN10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-icp-standard-10000-ppm-ca-in-5-hno-pca10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3eea7d10-23de-401b-b198-b391000e6227.png?v=1776330079</image:loc>
      <image:title>Calcium ICP Standard, 10,000 ppm Ca in 5% HNO? - PCA10KN-50</image:title>
      <image:caption>Calcium ICP Standard, 10,000 ppm Ca in 5% HNO? - PCA10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-icp-standard-10000-ppm-ca-in-5-hno-pca10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_83014661-76b5-402f-9515-4e268ee2faf9.png?v=1776330079</image:loc>
      <image:title>Calcium ICP Standard, 10,000 ppm Ca in 5% HNO? - PCA10KN-100</image:title>
      <image:caption>Calcium ICP Standard, 10,000 ppm Ca in 5% HNO? - PCA10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/manganese-icp-standard-10000-ppm-mn-in-5-hno-pmn10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_aa5be11e-9ea0-41d6-8325-e27e7490de18.png?v=1776330078</image:loc>
      <image:title>Manganese ICP Standard, 10,000 ppm Mn in 5% HNO? - PMN10KN-50</image:title>
      <image:caption>Manganese ICP Standard, 10,000 ppm Mn in 5% HNO? - PMN10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-biotin-nhs-biotin-n-hydroxysuccinimide-ester-rmb14202-100cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_06acdade-7cc3-49ec-83a1-21a60a2fe526.png?v=1776330078</image:loc>
      <image:title>ProteoSpec? Biotin-NHS Biotin N-hydroxysuccinimide ester - RMB14202-100CM</image:title>
      <image:caption>ProteoSpec Biotin-NHS Biotin N-hydroxysuccinimide ester - RMB14202-100CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-hepes-molecular-biology-grade-4-2-hydroxyethyl-1-piperazineethanesulfonic-acid-rmb19102-25c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_0f31f656-b243-4319-9017-2b37692140ae.png?v=1776330080</image:loc>
      <image:title>ProteoSpec? HEPES, Molecular Biology Grade 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid - RMB19102-25C2</image:title>
      <image:caption>ProteoSpec HEPES, Molecular Biology Grade 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid - RMB19102-25C2</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/magnesium-icp-standard-10000-ppm-mg-in-5-hcl-pmg10kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_feba02b3-8d51-42ab-b489-ef1249e27da8.png?v=1776330081</image:loc>
      <image:title>Magnesium ICP Standard, 10,000 ppm Mg in 5% HCl - PMG10KH-500</image:title>
      <image:caption>Magnesium ICP Standard, 10,000 ppm Mg in 5% HCl - PMG10KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-chca-maldi-matrix-alpha-cyano-4-hydroxycinnamic-acid-rmb15101-5x10cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_da4cbd06-c3c9-42c3-8dac-a215c0b080e4.png?v=1776330078</image:loc>
      <image:title>ProteoSpec? CHCA MALDI Matrix Alpha-Cyano-4-hydroxycinnamic acid - RMB15101-5x10CM</image:title>
      <image:caption>ProteoSpec CHCA MALDI Matrix Alpha-Cyano-4-hydroxycinnamic acid - RMB15101-5x10CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-icp-standard-1000-ppm-ca-in-3-hno-pca1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f46e0e95-9ee6-4feb-b62c-f2dfab36e902.png?v=1776330079</image:loc>
      <image:title>Calcium ICP Standard, 1000 ppm Ca in 3% HNO? - PCA1KN-100</image:title>
      <image:caption>Calcium ICP Standard, 1000 ppm Ca in 3% HNO? - PCA1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/magnesium-icp-standard-10000-ppm-mg-in-5-hno-pmg10kn-250</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_05b53909-f59b-4668-98d5-fd0db1dd1a70.png?v=1776330081</image:loc>
      <image:title>Magnesium ICP Standard, 10,000 ppm Mg in 5% HNO? - PMG10KN-250</image:title>
      <image:caption>Magnesium ICP Standard, 10,000 ppm Mg in 5% HNO? - PMG10KN-250</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-icp-ms-standard-1000-ppm-k-in-3-hno-msk1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_78becd38-be4c-4c06-981a-2d915f40cf91.png?v=1776330080</image:loc>
      <image:title>Potassium ICP-MS Standard, 1000 ppm K in 3% HNO? - MSK1KN-100</image:title>
      <image:caption>Potassium ICP-MS Standard, 1000 ppm K in 3% HNO? - MSK1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-sinapinic-acid-maldi-matrix-rmb15103-24x1cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_8cd4c0f3-359d-47ee-a6f7-28cf00b11e32.png?v=1776330080</image:loc>
      <image:title>ProteoSpec? Sinapinic Acid MALDI Matrix - RMB15103-24x1CM</image:title>
      <image:caption>ProteoSpec Sinapinic Acid MALDI Matrix - RMB15103-24x1CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/bismuth-icp-standard-1000-ppm-bi-in-3-hno-pbi1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_18e929f0-ac3c-421f-ab9f-e08ffd4c3432.png?v=1776330081</image:loc>
      <image:title>Bismuth ICP Standard, 1000 ppm Bi in 3% HNO? - PBI1KN-100</image:title>
      <image:caption>Bismuth ICP Standard, 1000 ppm Bi in 3% HNO? - PBI1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cerium-icp-standard-10000-ppm-ce-in-10-hno-pce10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_efc8afed-0ef5-4c8b-9a91-53f9852928a7.png?v=1776330080</image:loc>
      <image:title>Cerium ICP Standard, 10,000 ppm Ce in 10% HNO? - PCE10KN-500</image:title>
      <image:caption>Cerium ICP Standard, 10,000 ppm Ce in 10% HNO? - PCE10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-chca-maldi-matrix-alpha-cyano-4-hydroxycinnamic-acid-rmb15101-24x1cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_d42823e0-5f0c-49cb-b199-f53cb0a21e64.png?v=1776330080</image:loc>
      <image:title>ProteoSpec? CHCA MALDI Matrix Alpha-Cyano-4-hydroxycinnamic acid - RMB15101-24x1CM</image:title>
      <image:caption>ProteoSpec CHCA MALDI Matrix Alpha-Cyano-4-hydroxycinnamic acid - RMB15101-24x1CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tin-icp-ms-standard-10000-ppm-sn-in-5-hno-mssn10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9db8b8a4-3b08-491b-b11c-367b00565a6d.png?v=1776330079</image:loc>
      <image:title>Tin ICP-MS Standard, 10,000 ppm Sn in 5% HNO? - MSSN10KN-100</image:title>
      <image:caption>Tin ICP-MS Standard, 10,000 ppm Sn in 5% HNO? - MSSN10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/beryllium-icp-standard-10000-ppm-be-in-5-hno-pbe10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_62977953-8297-4ccf-a03a-3a60ce50bde0.png?v=1776330083</image:loc>
      <image:title>Beryllium ICP Standard, 10,000 ppm Be in 5% HNO? - PBE10KN-100</image:title>
      <image:caption>Beryllium ICP Standard, 10,000 ppm Be in 5% HNO? - PBE10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cobalt-icp-standard-10000-ppm-co-in-5-hno-pco10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b9875b1a-4a3d-4870-b569-204b8ae93c0a.png?v=1776330080</image:loc>
      <image:title>Cobalt ICP Standard, 10,000 ppm Co in 5% HNO? - PCO10KN-500</image:title>
      <image:caption>Cobalt ICP Standard, 10,000 ppm Co in 5% HNO? - PCO10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/magnesium-icp-standard-10000-ppm-mg-in-5-hno-pmg10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c58fd893-1a4b-42d0-9c47-6ae240860ec9.png?v=1776330082</image:loc>
      <image:title>Magnesium ICP Standard, 10,000 ppm Mg in 5% HNO? - PMG10KN-500</image:title>
      <image:caption>Magnesium ICP Standard, 10,000 ppm Mg in 5% HNO? - PMG10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cerium-icp-standard-10000-ppm-ce-in-10-hno-pce10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_15e7ac6e-8240-4b6b-bb21-b2c1c343d1da.png?v=1776330081</image:loc>
      <image:title>Cerium ICP Standard, 10,000 ppm Ce in 10% HNO? - PCE10KN-100</image:title>
      <image:caption>Cerium ICP Standard, 10,000 ppm Ce in 10% HNO? - PCE10KN-100</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_f6f2d3f9-c3eb-4916-92f5-855983c2f4ef.png?v=1776330082</image:loc>
      <image:title>ProteoSpec? DHB MALDI Matrix 2,5-Dihydroxybenzoic acid - RMB15102-5x10CM</image:title>
      <image:caption>ProteoSpec DHB MALDI Matrix 2,5-Dihydroxybenzoic acid - RMB15102-5x10CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/rhodium-icp-ms-standard-1000-ppm-rh-in-3-hcl-msrh1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_15b6cf10-7a0c-4dca-b8f8-f3b30a4fe92d.png?v=1776330081</image:loc>
      <image:title>Rhodium ICP-MS Standard, 1000 ppm Rh in 3% HCl - MSRH1KH-100</image:title>
      <image:caption>Rhodium ICP-MS Standard, 1000 ppm Rh in 3% HCl - MSRH1KH-100</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_22ad585a-a1d0-4b78-bdb6-c0cdefd8b13f.png?v=1776330081</image:loc>
      <image:title>Antimony ICP-MS Standard, 1000 ppm Sb in H?O/Tartaric Acid/tr HNO? - MSSB1KW-100</image:title>
      <image:caption>Antimony ICP-MS Standard, 1000 ppm Sb in H?O/Tartaric Acid/tr HNO? - MSSB1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-dhb-maldi-matrix-25-dihydroxybenzoic-acid-rmb15102-24x1cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_95fed93c-38df-49dc-bdb6-fbe70df8eb2c.png?v=1776330081</image:loc>
      <image:title>ProteoSpec? DHB MALDI Matrix 2,5-Dihydroxybenzoic acid - RMB15102-24X1CM</image:title>
      <image:caption>ProteoSpec DHB MALDI Matrix 2,5-Dihydroxybenzoic acid - RMB15102-24X1CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-sinapinic-acid-maldi-matrix-rmb15103-5x10cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_634482c7-78f8-400b-8880-23d2009a0e59.png?v=1776330082</image:loc>
      <image:title>ProteoSpec? Sinapinic Acid MALDI Matrix - RMB15103-5x10CM</image:title>
      <image:caption>ProteoSpec Sinapinic Acid MALDI Matrix - RMB15103-5x10CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-icp-standard-1000-ppm-ca-in-3-hno-pca1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1597d580-4f33-402b-9a56-3f23ca23af94.png?v=1776330080</image:loc>
      <image:title>Calcium ICP Standard, 1000 ppm Ca in 3% HNO? - PCA1KN-500</image:title>
      <image:caption>Calcium ICP Standard, 1000 ppm Ca in 3% HNO? - PCA1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-icp-standard-1000-ppm-ca-in-3-hcl-pca1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f2d2a573-9980-4b1e-a67f-efcbec542045.png?v=1776330083</image:loc>
      <image:title>Calcium ICP Standard, 1000 ppm Ca in 3% HCl - PCA1KH-500</image:title>
      <image:caption>Calcium ICP Standard, 1000 ppm Ca in 3% HCl - PCA1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-icp-standard-10000-ppm-ca-in-5-hno-pca10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2bcac7c5-4a87-4df4-bb71-fe43cdbc2987.png?v=1776330081</image:loc>
      <image:title>Calcium ICP Standard, 10,000 ppm Ca in 5% HNO? - PCA10KN-500</image:title>
      <image:caption>Calcium ICP Standard, 10,000 ppm Ca in 5% HNO? - PCA10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-icp-standard-1000-ppm-cd-in-3-hcl-pcd1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_eca9cd63-4a30-40e0-8b50-94899eae0948.png?v=1776330084</image:loc>
      <image:title>Cadmium ICP Standard, 1000 ppm Cd in 3% HCl - PCD1KH-500</image:title>
      <image:caption>Cadmium ICP Standard, 1000 ppm Cd in 3% HCl - PCD1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-ms-standard-1000-ppm-mo-in-3-nhoh-msmo1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c8ec58cf-0897-4bd5-9a2e-3957be3ca52b.png?v=1776330082</image:loc>
      <image:title>Molybdenum ICP-MS Standard, 1000 ppm Mo in 3% NH?OH - MSMO1KW-100</image:title>
      <image:caption>Molybdenum ICP-MS Standard, 1000 ppm Mo in 3% NH?OH - MSMO1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lead-icp-ms-standard-1000-ppm-pb-in-3-hno-mspb1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5605084b-894a-4e46-97fc-eb15683cc182.png?v=1776330085</image:loc>
      <image:title>Lead ICP-MS Standard, 1000 ppm Pb in 3% HNO? - MSPB1KN-100</image:title>
      <image:caption>Lead ICP-MS Standard, 1000 ppm Pb in 3% HNO? - MSPB1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/manganese-icp-standard-1000-ppm-mn-in-3-hno-pmn1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4b1eb474-366d-46c7-bb1e-ea5e44424f56.png?v=1776330085</image:loc>
      <image:title>Manganese ICP Standard, 1000 ppm Mn in 3% HNO? - PMN1KN-100</image:title>
      <image:caption>Manganese ICP Standard, 1000 ppm Mn in 3% HNO? - PMN1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/beryllium-icp-standard-1000-ppm-be-in-3-hno-pbe1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0cf23153-16e9-4d8b-bc73-776d52bb7723.png?v=1776330084</image:loc>
      <image:title>Beryllium ICP Standard, 1000 ppm Be in 3% HNO? - PBE1KN-500</image:title>
      <image:caption>Beryllium ICP Standard, 1000 ppm Be in 3% HNO? - PBE1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-nhs-ss-biotin-succinimidyl-2-biotinamido-ethyl-1-3-dithiopropionate-rmb14204-100cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_1d1eaa31-e431-493b-84fe-0e084f03faf0.png?v=1776330082</image:loc>
      <image:title>ProteoSpec? NHS-SS-Biotin Succinimidyl 2-(biotinamido)-ethyl-1-3?-dithiopropionate - RMB14204-100CM</image:title>
      <image:caption>ProteoSpec NHS-SS-Biotin Succinimidyl 2-(biotinamido)-ethyl-1-3-dithiopropionate - RMB14204-100CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-icp-standard-10000-ppm-ca-in-5-hcl-pca10kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5b475c64-030e-4b79-bc23-7404fd8b67df.png?v=1776330084</image:loc>
      <image:title>Calcium ICP Standard, 10,000 ppm Ca in 5% HCl - PCA10KH-500</image:title>
      <image:caption>Calcium ICP Standard, 10,000 ppm Ca in 5% HCl - PCA10KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lithium-icp-ms-standard-1000-ppm-li-in-3-hno-msli1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_409b31e4-ccf9-4a47-9107-c941c8149ddc.png?v=1776330083</image:loc>
      <image:title>Lithium ICP-MS Standard, 1000 ppm Li in 3% HNO? - MSLI1KN-100</image:title>
      <image:caption>Lithium ICP-MS Standard, 1000 ppm Li in 3% HNO? - MSLI1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-2-icp-epa-2007-version-44-rmcal2-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9d1def5f-f5f5-4095-9862-21cfea48c4d6.png?v=1776330085</image:loc>
      <image:title>Mixed Calibration Standard 2, ICP, EPA 200.7 version 4.4 - RMCAL2-100</image:title>
      <image:caption>Mixed Calibration Standard 2, ICP, EPA 200.7 version 4.4 - RMCAL2-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/misa-standard-6-transition-metals-rmisa6-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_946ccfec-a171-472d-9478-962620fefc69.png?v=1776330085</image:loc>
      <image:title>MISA Standard 6, Transition Metals - RMISA6-100</image:title>
      <image:caption>MISA Standard 6, Transition Metals - RMISA6-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/manganese-icp-standard-1000-ppm-mn-in-3-hno-pmn1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a1c73c41-19a0-4fc7-b1ef-5ed58bf0e522.png?v=1776330085</image:loc>
      <image:title>Manganese ICP Standard, 1000 ppm Mn in 3% HNO? - PMN1KN-500</image:title>
      <image:caption>Manganese ICP Standard, 1000 ppm Mn in 3% HNO? - PMN1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-ms-standard-1000-ppm-ni-in-3-hno-msni1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d5e82ce3-67f7-4b37-a2f0-28572a3444ad.png?v=1776330085</image:loc>
      <image:title>Nickel ICP-MS Standard, 1000 ppm Ni in 3% HNO? - MSNI1KN-100</image:title>
      <image:caption>Nickel ICP-MS Standard, 1000 ppm Ni in 3% HNO? - MSNI1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-ms-internal-standard-method-6020-rmsiss2-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c624852b-3146-46cb-8ed2-059e2e101d15.png?v=1776330085</image:loc>
      <image:title>ICP-MS Internal Standard, Method 6020 - RMSISS2-100</image:title>
      <image:caption>ICP-MS Internal Standard, Method 6020 - RMSISS2-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-ms-internal-standard-10-ppm-sc-in-3-hno-mssc10n-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a38aa226-be91-4bf5-88da-42dbdd7b86ad.png?v=1776330084</image:loc>
      <image:title>ICP-MS Internal Standard, 10 ppm Sc in 3% HNO? - MSSC10N-100</image:title>
      <image:caption>ICP-MS Internal Standard, 10 ppm Sc in 3% HNO? - MSSC10N-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cerium-icp-standard-1000-ppm-ce-in-3-hno-pce1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_7bd4b182-f7a1-493f-956a-75a188e5952f.png?v=1776330082</image:loc>
      <image:title>Cerium ICP Standard, 1000 ppm Ce in 3% HNO? - PCE1KN-100</image:title>
      <image:caption>Cerium ICP Standard, 1000 ppm Ce in 3% HNO? - PCE1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-nn-carbonyldiimidazole-cdi-rmb13501-5c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_fb44dbcf-bf2c-46f1-9b5d-25773ca3b696.png?v=1776330087</image:loc>
      <image:title>ProteoSpec? N,N&apos;-Carbonyldiimidazole, CDI - RMB13501-5C2</image:title>
      <image:caption>ProteoSpec N,N&apos;-Carbonyldiimidazole, CDI - RMB13501-5C2</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tin-icp-ms-standard-1000-ppm-sn-in-3-hno-mssn1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_250fd56b-8e19-469c-abee-86afc5a679cc.png?v=1776330085</image:loc>
      <image:title>Tin ICP-MS Standard, 1000 ppm Sn in 3% HNO? - MSSN1KN-100</image:title>
      <image:caption>Tin ICP-MS Standard, 1000 ppm Sn in 3% HNO? - MSSN1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-ms-interference-check-standard-1-rmsifck1-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5bdd8e1d-dcc0-4ad0-9f1d-80dee8ae6fda.png?v=1776330083</image:loc>
      <image:title>ICP-MS Interference Check Standard 1 - RMSIFCK1-100</image:title>
      <image:caption>ICP-MS Interference Check Standard 1 - RMSIFCK1-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/bismuth-icp-standard-10000-ppm-bi-in-5-hno-pbi10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0d2d4c6b-a416-485f-b72a-d7b4d0154c30.png?v=1776330084</image:loc>
      <image:title>Bismuth ICP Standard, 10,000 ppm Bi in 5% HNO? - PBI10KN-100</image:title>
      <image:caption>Bismuth ICP Standard, 10,000 ppm Bi in 5% HNO? - PBI10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/magnesium-icp-standard-1000-ppm-mg-in-3-hno-pmg1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_cb3cf7e0-b4fb-4b75-8f53-92505532d34b.png?v=1776330084</image:loc>
      <image:title>Magnesium ICP Standard, 1000 ppm Mg in 3% HNO? - PMG1KN-500</image:title>
      <image:caption>Magnesium ICP Standard, 1000 ppm Mg in 3% HNO? - PMG1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/multichem-15-standard-in-7-nitric-acid-rmulti15-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_af60e7b0-8912-4f19-8952-4189c29a766e.png?v=1776330084</image:loc>
      <image:title>Multichem-15 Standard in 7% Nitric Acid - RMULTI15-1N</image:title>
      <image:caption>Multichem-15 Standard in 7% Nitric Acid - RMULTI15-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/magnesium-icp-standard-1000-ppm-mg-in-3-hno-pmg1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4ffe134f-0c5d-4a51-b0f2-022c8756d5da.png?v=1776330086</image:loc>
      <image:title>Magnesium ICP Standard, 1000 ppm Mg in 3% HNO? - PMG1KN-100</image:title>
      <image:caption>Magnesium ICP Standard, 1000 ppm Mg in 3% HNO? - PMG1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/multi-ion-standard-100-ppm-each-cl-no-no-so-f-po-co-for-ion-chromatography-mstd100-4</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120c_dfb535c8-e918-438b-8008-f087db601da9.png?v=1776330085</image:loc>
      <image:title>Multi-Ion Standard 100 ppm each Cl?, NO??, NO??, SO?²?, F?, PO?³?, C?O?²? for Ion Chromatography - MSTD100-4</image:title>
      <image:caption>Multi-Ion Standard 100 ppm each Cl?, NO??, NO??, SO?²?, F?, PO?³?, C?O?²? for Ion Chromatography - MSTD100-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-icp-ms-standard-10000-ppm-na-in-3-hno-msna10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4e922ac8-9372-48a8-a7d0-afcc0ee4bd6f.png?v=1776330088</image:loc>
      <image:title>Sodium ICP-MS Standard, 10,000 ppm Na in 3% HNO? - MSNA10KN-100</image:title>
      <image:caption>Sodium ICP-MS Standard, 10,000 ppm Na in 3% HNO? - MSNA10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-icp-ms-standard-1000-ppm-na-in-3-hno-msna1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2b605f4b-f47e-45c5-b197-73e8f4790327.png?v=1776330087</image:loc>
      <image:title>Sodium ICP-MS Standard, 1000 ppm Na in 3% HNO? - MSNA1KN-100</image:title>
      <image:caption>Sodium ICP-MS Standard, 1000 ppm Na in 3% HNO? - MSNA1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hexavalent-chromium-icp-standard-1000-ppm-cr-in-3-hcl-pcr61kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e19b8a77-9773-4740-9df7-177a2add6ce6.png?v=1776330087</image:loc>
      <image:title>Hexavalent Chromium ICP Standard, 1000 ppm Cr?? in 3% HCl - PCR61KH-500</image:title>
      <image:caption>Hexavalent Chromium ICP Standard, 1000 ppm Cr?? in 3% HCl - PCR61KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-10000-ppm-mo-in-5-hnotr-hf-pmo10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6cf44a20-6c42-4a8f-808f-452bf40de9cb.png?v=1776330087</image:loc>
      <image:title>Molybdenum ICP Standard, 10,000 ppm Mo in 5% HNO?/tr HF - PMO10KN-100</image:title>
      <image:caption>Molybdenum ICP Standard, 10,000 ppm Mo in 5% HNO?/tr HF - PMO10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/magnesium-icp-ms-standard-10000-ppm-mg-in-5-hno-msmg10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_500bc88e-e681-44fb-a5e0-2bf1d6387299.png?v=1776330086</image:loc>
      <image:title>Magnesium ICP-MS Standard, 10,000 ppm Mg in 5% HNO? - MSMG10KN-100</image:title>
      <image:caption>Magnesium ICP-MS Standard, 10,000 ppm Mg in 5% HNO? - MSMG10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cobalt-icp-standard-1000-ppm-co-in-3-hno-pco1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d6f00d85-c34b-4875-a989-9fd5e9490dd6.png?v=1776330088</image:loc>
      <image:title>Cobalt ICP Standard, 1000 ppm Co in 3% HNO? - PCO1KN-100</image:title>
      <image:caption>Cobalt ICP Standard, 1000 ppm Co in 3% HNO? - PCO1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cobalt-icp-standard-1000-ppm-co-in-3-hno-pco1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a54bca6a-36e1-4ffa-9c3f-8ed6b2a96589.png?v=1776330087</image:loc>
      <image:title>Cobalt ICP Standard, 1000 ppm Co in 3% HNO? - PCO1KN-500</image:title>
      <image:caption>Cobalt ICP Standard, 1000 ppm Co in 3% HNO? - PCO1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-1000-ppm-mo-in-3-nhoh-pmo1kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a7d0cf27-1bba-44bb-9798-1ecf02c981fc.png?v=1776330087</image:loc>
      <image:title>Molybdenum ICP Standard, 1000 ppm Mo in 3% NH?OH - PMO1KW-500</image:title>
      <image:caption>Molybdenum ICP Standard, 1000 ppm Mo in 3% NH?OH - PMO1KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cobalt-icp-standard-10000-ppm-co-in-5-hno-pco10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_96352c86-6cee-4ad9-a148-eb6481da1413.png?v=1776330088</image:loc>
      <image:title>Cobalt ICP Standard, 10,000 ppm Co in 5% HNO? - PCO10KN-100</image:title>
      <image:caption>Cobalt ICP Standard, 10,000 ppm Co in 5% HNO? - PCO10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silicon-icp-ms-standard-1000-ppm-si-in-hotr-hf-mssi1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_64cf0bd3-123e-47a8-8c1a-de1c5e18c8a6.png?v=1776330090</image:loc>
      <image:title>Silicon ICP-MS Standard, 1000 ppm Si in H?O/tr HF - MSSI1KW-100</image:title>
      <image:caption>Silicon ICP-MS Standard, 1000 ppm Si in H?O/tr HF - MSSI1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-100-ppm-mo-in-ho-rpmo100w-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9b500afa-bcd2-46bf-b6a0-8bd84d55bd67.png?v=1776330087</image:loc>
      <image:title>Molybdenum ICP Standard, 100 ppm Mo in H?O - RPMO100W-500N</image:title>
      <image:caption>Molybdenum ICP Standard, 100 ppm Mo in H?O - RPMO100W-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-icp-ms-standard-10000-ppm-k-in-5-hno-msk10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_89a1b963-50bf-4469-bd81-30dfc7afca69.png?v=1776330089</image:loc>
      <image:title>Potassium ICP-MS Standard, 10,000 ppm K in 5% HNO? - MSK10KN-100</image:title>
      <image:caption>Potassium ICP-MS Standard, 10,000 ppm K in 5% HNO? - MSK10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/yttrium-icp-ms-standard-10000-ppm-y-in-5-hno-msy10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e199cc70-f353-496f-919a-caaae15ad1ad.png?v=1776330086</image:loc>
      <image:title>Yttrium ICP-MS Standard, 10,000 ppm Y in 5% HNO? - MSY10KN-100</image:title>
      <image:caption>Yttrium ICP-MS Standard, 10,000 ppm Y in 5% HNO? - MSY10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-ms-internal-standard-100-ppm-rh-in-3-hcl-msrh100h-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_56a9998d-f6a1-44d8-8706-434b2f824518.png?v=1776330085</image:loc>
      <image:title>ICP-MS Internal Standard, 100 ppm Rh in 3% HCl - MSRH100H-100</image:title>
      <image:caption>ICP-MS Internal Standard, 100 ppm Rh in 3% HCl - MSRH100H-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/misa-standard-1-rare-earth-metals-rmisa1-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_db55532a-94fa-4e08-a2b1-fbd5e2786e8c.png?v=1776330089</image:loc>
      <image:title>MISA Standard 1, Rare Earth Metals - RMISA1-100</image:title>
      <image:caption>MISA Standard 1, Rare Earth Metals - RMISA1-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/manganese-icp-standard-10-ppm-mn-in-3-hno-rpmn10n0-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e641750e-d25c-4ebe-a0a8-157409fda18c.png?v=1776330089</image:loc>
      <image:title>Manganese ICP Standard, 10 ppm Mn in 3% HNO? - RPMN10N0-500N</image:title>
      <image:caption>Manganese ICP Standard, 10 ppm Mn in 3% HNO? - RPMN10N0-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromium-icp-standard-1000-ppm-cr-in-3-hno-pcr1kn-250</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_77f614fa-3981-49ed-8c8d-c694cb3d8b98.png?v=1776330087</image:loc>
      <image:title>Chromium ICP Standard, 1000 ppm Cr in 3% HNO? - PCR1KN-250</image:title>
      <image:caption>Chromium ICP Standard, 1000 ppm Cr in 3% HNO? - PCR1KN-250</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-glycine-molecular-biology-grade-rmb19103-50c2</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_ce59f1bf-0491-4b2d-a930-1324a4537f9b.png?v=1776330091</image:loc>
      <image:title>ProteoSpec? Glycine, Molecular Biology Grade - RMB19103-50C2</image:title>
      <image:caption>ProteoSpec Glycine, Molecular Biology Grade - RMB19103-50C2</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromium-icp-standard-100-ppm-cr-in-dilute-hno-rpcr01kn-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_52f0b23d-13fb-441d-9c9e-e47298e0cbd7.png?v=1776330091</image:loc>
      <image:title>Chromium ICP Standard, 100 ppm Cr in dilute HNO? - RPCR01KN-100N</image:title>
      <image:caption>Chromium ICP Standard, 100 ppm Cr in dilute HNO? - RPCR01KN-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-anion-standard-10-ppm-br-cl-rpmx040n-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0768d533-b669-43ed-b6d0-b23c3cb78eeb.png?v=1776330090</image:loc>
      <image:title>Mixed Anion Standard, 10 ppm: Br, Cl - RPMX040N-100N</image:title>
      <image:caption>Mixed Anion Standard, 10 ppm: Br, Cl - RPMX040N-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zinc-icp-ms-standard-1000-ppm-zn-in-3-hno-mszn1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d7519b4f-8e56-4013-b14f-fa921f2d0fd0.png?v=1776330094</image:loc>
      <image:title>Zinc ICP-MS Standard, 1000 ppm Zn in 3% HNO? - MSZN1KN-100</image:title>
      <image:caption>Zinc ICP-MS Standard, 1000 ppm Zn in 3% HNO? - MSZN1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-icp-standard-10000-ppm-cd-in-5-hno-pcd10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6dd68997-7ddf-41cb-af91-1242c478bbcb.png?v=1776330090</image:loc>
      <image:title>Cadmium ICP Standard, 10,000 ppm Cd in 5% HNO? - PCD10KN-100</image:title>
      <image:caption>Cadmium ICP Standard, 10,000 ppm Cd in 5% HNO? - PCD10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/titanium-icp-ms-standard-1000-ppm-ti-in-hotr-hf-msti1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_db203891-137c-4469-af71-da75a427cc75.png?v=1776330089</image:loc>
      <image:title>Titanium ICP-MS Standard, 1000 ppm Ti in H?O/tr HF - MSTI1KW-100</image:title>
      <image:caption>Titanium ICP-MS Standard, 1000 ppm Ti in H?O/tr HF - MSTI1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromium-icp-standard-10000-ppm-cr-in-5-hno-pcr10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_76fc6e0d-6096-484b-84b9-8753ba642319.png?v=1776330089</image:loc>
      <image:title>Chromium ICP Standard, 10,000 ppm Cr in 5% HNO? - PCR10KN-500</image:title>
      <image:caption>Chromium ICP Standard, 10,000 ppm Cr in 5% HNO? - PCR10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-10000-ppm-mo-in-2-nhoh-pmo10kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_71deb3fd-9621-427c-a54c-8aba750594b4.png?v=1776330093</image:loc>
      <image:title>Molybdenum ICP Standard, 10,000 ppm Mo in 2% NH?OH - PMO10KW-500</image:title>
      <image:caption>Molybdenum ICP Standard, 10,000 ppm Mo in 2% NH?OH - PMO10KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/magnesium-icp-standard-10000-ppm-mg-in-5-hno-pmg10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b8271a4e-2d9f-426a-9cce-d2a0379c8be6.png?v=1776330090</image:loc>
      <image:title>Magnesium ICP Standard, 10,000 ppm Mg in 5% HNO? - PMG10KN-50</image:title>
      <image:caption>Magnesium ICP Standard, 10,000 ppm Mg in 5% HNO? - PMG10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/manganese-icp-standard-10-ppm-mn-in-3-hno-rpmn10n0-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f5ef779e-374c-434c-b6ac-4c910cb9c99f.png?v=1776330091</image:loc>
      <image:title>Manganese ICP Standard, 10 ppm Mn in 3% HNO? - RPMN10N0-100N</image:title>
      <image:caption>Manganese ICP Standard, 10 ppm Mn in 3% HNO? - RPMN10N0-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-10000-ppm-mo-in-2-nhoh-pmo10kw-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f9b15eb5-913d-4e0e-920e-ce19ed8450ee.png?v=1776330092</image:loc>
      <image:title>Molybdenum ICP Standard, 10,000 ppm Mo in 2% NH?OH - PMO10KW-50</image:title>
      <image:caption>Molybdenum ICP Standard, 10,000 ppm Mo in 2% NH?OH - PMO10KW-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromium-icp-standard-10000-ppm-cr-in-5-hno-pcr10kn-250</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6269c661-3bde-412f-85e5-2346dedb730a.png?v=1776330091</image:loc>
      <image:title>Chromium ICP Standard, 10,000 ppm Cr in 5% HNO? - PCR10KN-250</image:title>
      <image:caption>Chromium ICP Standard, 10,000 ppm Cr in 5% HNO? - PCR10KN-250</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-biotin-hydrazide-rmb14201-100cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_dca552fe-4aed-4141-b8cd-044731ae2896.png?v=1776330093</image:loc>
      <image:title>ProteoSpec? Biotin-Hydrazide - RMB14201-100CM</image:title>
      <image:caption>ProteoSpec Biotin-Hydrazide - RMB14201-100CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cobalt-icp-standard-10000-ppm-co-in-5-hno-pco10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_7e5e35f3-819d-425b-8f53-de5d853cd9c7.png?v=1776330090</image:loc>
      <image:title>Cobalt ICP Standard, 10,000 ppm Co in 5% HNO? - PCO10KN-50</image:title>
      <image:caption>Cobalt ICP Standard, 10,000 ppm Co in 5% HNO? - PCO10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/thallium-icp-ms-standard-1000-ppm-tl-in-3-hno-mstl1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3581143b-04a8-4d3b-bcbf-b35eec51ee26.png?v=1776330091</image:loc>
      <image:title>Thallium ICP-MS Standard, 1000 ppm Tl in 3% HNO? - MSTL1KN-100</image:title>
      <image:caption>Thallium ICP-MS Standard, 1000 ppm Tl in 3% HNO? - MSTL1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-10000-ppm-mo-in-2-nhoh-pmo10kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3ff51421-dd2f-44d3-b3c2-9528458a9e20.png?v=1776330093</image:loc>
      <image:title>Molybdenum ICP Standard, 10,000 ppm Mo in 2% NH?OH - PMO10KW-100</image:title>
      <image:caption>Molybdenum ICP Standard, 10,000 ppm Mo in 2% NH?OH - PMO10KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/strontium-icp-standard-1000-ppm-sr-in-3-hno-mssr1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_71b82502-91c3-43dc-aa85-deae39995a81.png?v=1776330093</image:loc>
      <image:title>Strontium ICP Standard, 1000 ppm Sr in 3% HNO? - MSSR1KN-100</image:title>
      <image:caption>Strontium ICP Standard, 1000 ppm Sr in 3% HNO? - MSSR1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/selenium-icp-ms-standard-1000-ppm-se-in-3-hno-msse1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e8f1ba62-d61c-4ca2-8030-8ca0ac82800a.png?v=1776330092</image:loc>
      <image:title>Selenium ICP-MS Standard, 1000 ppm Se in 3% HNO? - MSSE1KN-100</image:title>
      <image:caption>Selenium ICP-MS Standard, 1000 ppm Se in 3% HNO? - MSSE1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-10-ppm-ce-dy-er-eu-gd-ho-la-lu-nd-pr-sc-sm-tb-th-tm-u-yb-y-in-rpmx036n-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b76d32bf-d87b-4804-b253-653f621729f0.png?v=1776330094</image:loc>
      <image:title>Mixed ICP Standard, 10 ppm: Ce, Dy, Er, Eu, Gd, Ho, La, Lu, Nd, Pr, Sc, Sm, Tb, Th, Tm, U, Yb, Y in  - RPMX036N-100N</image:title>
      <image:caption>Mixed ICP Standard, 10 ppm: Ce, Dy, Er, Eu, Gd, Ho, La, Lu, Nd, Pr, Sc, Sm, Tb, Th, Tm, U, Yb, Y in  - RPMX036N-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cerium-icp-standard-1000-ppm-ce-in-3-hno-pce1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_55c5b60f-ea08-48ca-8612-fb65de59137d.png?v=1776330095</image:loc>
      <image:title>Cerium ICP Standard, 1000 ppm Ce in 3% HNO? - PCE1KN-500</image:title>
      <image:caption>Cerium ICP Standard, 1000 ppm Ce in 3% HNO? - PCE1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromium-icp-standard-10000-ppm-cr-in-5-hcl-pcr10kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5f108809-7272-4d67-9440-2e42856c81b6.png?v=1776330092</image:loc>
      <image:title>Chromium ICP Standard, 10,000 ppm Cr in 5% HCl - PCR10KH-500</image:title>
      <image:caption>Chromium ICP Standard, 10,000 ppm Cr in 5% HCl - PCR10KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/manganese-icp-standard-10000-ppm-mn-in-5-hno-pmn10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e482c816-0db4-4ffd-a3b0-f3a269a226d1.png?v=1776330090</image:loc>
      <image:title>Manganese ICP Standard, 10,000 ppm Mn in 5% HNO? - PMN10KN-500</image:title>
      <image:caption>Manganese ICP Standard, 10,000 ppm Mn in 5% HNO? - PMN10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/scandium-icp-ms-standard-1000-ppm-sc-in-3-hno-mssc1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_93dfeba6-f403-4054-929d-a5d030a48dbe.png?v=1776330093</image:loc>
      <image:title>Scandium ICP-MS Standard, 1000 ppm Sc in 3% HNO? - MSSC1KN-100</image:title>
      <image:caption>Scandium ICP-MS Standard, 1000 ppm Sc in 3% HNO? - MSSC1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/misa-standard-5-fluoride-soluble-group-rmisa5-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_192a8c1b-e0a1-4625-bcb2-55696fd05949.png?v=1776330092</image:loc>
      <image:title>MISA Standard 5, Fluoride Soluble Group - RMISA5-100</image:title>
      <image:caption>MISA Standard 5, Fluoride Soluble Group - RMISA5-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/multielement-icp-standard-7-elements-1000-ppm-in-5-hno-rpmx013n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e27c24d2-a543-4d27-b1bc-1296ad6e6eae.png?v=1776330095</image:loc>
      <image:title>Multielement ICP Standard, 7 elements @ 1,000 ppm in 5% HNO? - RPMX013N-500N</image:title>
      <image:caption>Multielement ICP Standard, 7 elements @ 1,000 ppm in 5% HNO? - RPMX013N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-10-ppm-au-pd-pt-rh-ru-te-in-15-hcl-rpmx038n-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d6eaff00-1872-42fd-9740-4571ea55731b.png?v=1776330093</image:loc>
      <image:title>Mixed ICP Standard, 10 ppm: Au, Pd, Pt, Rh, Ru, Te, in 15% HCl - RPMX038N-100N</image:title>
      <image:caption>Mixed ICP Standard, 10 ppm: Au, Pd, Pt, Rh, Ru, Te, in 15% HCl - RPMX038N-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/matrix-modifier-40-wv-ammonium-phosphate-in-water-mmap40w-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f8edd215-5263-407d-9540-2d5036151364.png?v=1776330093</image:loc>
      <image:title>Matrix Modifier, 40% (w/v) Ammonium Phosphate in Water - MMAP40W-100</image:title>
      <image:caption>Matrix Modifier, 40% (w/v) Ammonium Phosphate in Water - MMAP40W-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-1000-ppm-mo-in-3-nhoh-pmo1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_31673d6c-75e8-4406-83e4-d11b2d13ab75.png?v=1776330092</image:loc>
      <image:title>Molybdenum ICP Standard, 1000 ppm Mo in 3% NH?OH - PMO1KW-100</image:title>
      <image:caption>Molybdenum ICP Standard, 1000 ppm Mo in 3% NH?OH - PMO1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-ms-tuning-solution-method-6020-91-rmstune1-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_712b6764-d3bd-45cb-9098-ca56bad902dc.png?v=1776330092</image:loc>
      <image:title>ICP-MS Tuning Solution, Method 6020 (91) - RMSTUNE1-100</image:title>
      <image:caption>ICP-MS Tuning Solution, Method 6020 (91) - RMSTUNE1-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cerium-icp-standard-10000-ppm-ce-in-10-hno-pce10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_514da5a7-5b3c-49b0-b217-d9953638c248.png?v=1776330091</image:loc>
      <image:title>Cerium ICP Standard, 10,000 ppm Ce in 10% HNO? - PCE10KN-50</image:title>
      <image:caption>Cerium ICP Standard, 10,000 ppm Ce in 10% HNO? - PCE10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-1000-ppm-mo-in-3-hnotr-hf-pmo1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_280da8a9-3f51-48c1-81c9-a106876e5552.png?v=1776330094</image:loc>
      <image:title>Molybdenum ICP Standard, 1000 ppm Mo in 3% HNO?/tr HF - PMO1KN-100</image:title>
      <image:caption>Molybdenum ICP Standard, 1000 ppm Mo in 3% HNO?/tr HF - PMO1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hexavalent-chromium-icp-standard-10000-ppm-cr-in-5-hcl-pcr610kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3d7d4876-b5c8-49ae-a618-1d7a1971cea7.png?v=1776330092</image:loc>
      <image:title>Hexavalent Chromium ICP Standard, 10,000 ppm Cr?? in 5% HCl - PCR610KH-500</image:title>
      <image:caption>Hexavalent Chromium ICP Standard, 10,000 ppm Cr?? in 5% HCl - PCR610KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-10000-ppm-mo-in-5-hnotr-hf-pmo10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_48b6e8ee-6a86-4073-90c5-1ab4dc4db776.png?v=1776330097</image:loc>
      <image:title>Molybdenum ICP Standard, 10,000 ppm Mo in 5% HNO?/tr HF - PMO10KN-500</image:title>
      <image:caption>Molybdenum ICP Standard, 10,000 ppm Mo in 5% HNO?/tr HF - PMO10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hexavalent-chromium-icp-standard-1000-ppm-cr-in-3-hcl-pcr61kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9ae7e1a8-823b-47df-8cfd-3edef892c382.png?v=1776330095</image:loc>
      <image:title>Hexavalent Chromium ICP Standard, 1000 ppm Cr?? in 3% HCl - PCR61KH-100</image:title>
      <image:caption>Hexavalent Chromium ICP Standard, 1000 ppm Cr?? in 3% HCl - PCR61KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/vanadium-icp-ms-standard-1000-ppm-v-in-3-hno-msv1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f4238982-951f-4dc0-8761-3a651c805c26.png?v=1776330092</image:loc>
      <image:title>Vanadium ICP-MS Standard, 1000 ppm V in 3% HNO? - MSV1KN-100</image:title>
      <image:caption>Vanadium ICP-MS Standard, 1000 ppm V in 3% HNO? - MSV1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zirconium-icp-ms-standard-1000-ppm-zr-in-3-hno-mszr1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e03de7f2-a99c-4162-b957-55dcdb32596e.png?v=1776330096</image:loc>
      <image:title>Zirconium ICP-MS Standard, 1000 ppm Zr in 3% HNO? - MSZR1KN-100</image:title>
      <image:caption>Zirconium ICP-MS Standard, 1000 ppm Zr in 3% HNO? - MSZR1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/releasing-agent-lanthanum-nitrate-5-la-in-5-hno-mmla50kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9961ff9e-a771-49c5-b41c-5eeb35824584.png?v=1776330095</image:loc>
      <image:title>Releasing Agent, Lanthanum Nitrate, 5% La in 5% HNO? - MMLA50KN-50</image:title>
      <image:caption>Releasing Agent, Lanthanum Nitrate, 5% La in 5% HNO? - MMLA50KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/multichem-16-standard-rmulti16-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2ea42e01-5bf7-46d8-bb1a-0a8e222e7a57.png?v=1776330097</image:loc>
      <image:title>Multichem-16 Standard - RMULTI16-1N</image:title>
      <image:caption>Multichem-16 Standard - RMULTI16-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-1000-ppm-na-960-ppm-so-500-ppm-ca-50-ppm-mg-300-ppm-u-20-ppm-v-in-5-hno-rpmx081n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2b4958c1-81c7-488c-87ab-852fcbbc3709.png?v=1776330094</image:loc>
      <image:title>Mixed ICP Standard 1000 ppm Na, 960 ppm SO?, 500 ppm Ca, 50 ppm Mg, 300 ppm U, 20 ppm V in 5% HNO? - RPMX081N-500N</image:title>
      <image:caption>Mixed ICP Standard 1000 ppm Na, 960 ppm SO?, 500 ppm Ca, 50 ppm Mg, 300 ppm U, 20 ppm V in 5% HNO? - RPMX081N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hexavalent-chromium-icp-standard-10000-ppm-cr-in-5-hcl-pcr610kh-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_90a59ea7-a091-498c-a1af-0a4b5b31a26e.png?v=1776330094</image:loc>
      <image:title>Hexavalent Chromium ICP Standard, 10,000 ppm Cr?? in 5% HCl - PCR610KH-50</image:title>
      <image:caption>Hexavalent Chromium ICP Standard, 10,000 ppm Cr?? in 5% HCl - PCR610KH-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-10-ppm-al-sb-as-ba-be-b-bi-cd-ca-cr-co-cu-fe-pb-li-mg-mn-mo-rpmx035n-100b</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e6a23c16-6be8-4d77-aa2c-2dbda356ec4d.png?v=1776330096</image:loc>
      <image:title>Mixed ICP Standard, 10 ppm: Al, Sb, As, Ba, Be, B, Bi, Cd, Ca, Cr, Co, Cu, Fe, Pb, Li,  Mg, Mn, Mo,  - RPMX035N-100B</image:title>
      <image:caption>Mixed ICP Standard, 10 ppm: Al, Sb, As, Ba, Be, B, Bi, Cd, Ca, Cr, Co, Cu, Fe, Pb, Li,  Mg, Mn, Mo,  - RPMX035N-100B</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hexavalent-chromium-icp-standard-10000-ppm-cr-in-5-hno-pcr610kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_036a5252-fae4-46ca-aef3-a7785b8fabfa.png?v=1776330094</image:loc>
      <image:title>Hexavalent Chromium ICP Standard, 10,000 ppm Cr?? in 5% HNO? - PCR610KN-100</image:title>
      <image:caption>Hexavalent Chromium ICP Standard, 10,000 ppm Cr?? in 5% HNO? - PCR610KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-blend-8-elements-1000-ppm-in-5-hno-rpmx017n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c6927690-123a-40e3-8904-7a027b862d9b.png?v=1776330097</image:loc>
      <image:title>ICP Blend, 8 elements @ 1,000 ppm in 5% HNO? - RPMX017N-500N</image:title>
      <image:caption>ICP Blend, 8 elements @ 1,000 ppm in 5% HNO? - RPMX017N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-blend-8-elements-in-5-hno3-rpmx0300-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9d010cc7-9df8-4ca2-b171-cdf694e40579.png?v=1776330098</image:loc>
      <image:title>ICP blend, 8 Elements in 5% HNO3 - RPMX0300-100N</image:title>
      <image:caption>ICP blend, 8 Elements in 5% HNO3 - RPMX0300-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/matrix-modifier-5-wv-ammonium-nitrate-in-2-vv-hno-mman5n-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b59eac76-5ce8-4ab1-a0b5-caba3a7fae4b.png?v=1776330097</image:loc>
      <image:title>Matrix Modifier, 5% (w/v) Ammonium Nitrate in 2% (v/v) HNO? - MMAN5N-50</image:title>
      <image:caption>Matrix Modifier, 5% (w/v) Ammonium Nitrate in 2% (v/v) HNO? - MMAN5N-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cesium-icp-standard-1000-ppm-cs-in-3-hno-pcs1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_90486c15-9bc9-433b-86b8-4b3125b732a3.png?v=1776330095</image:loc>
      <image:title>Cesium ICP Standard, 1000 ppm Cs in 3% HNO? - PCS1KN-100</image:title>
      <image:caption>Cesium ICP Standard, 1000 ppm Cs in 3% HNO? - PCS1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-2a-icp-rev-33-rmxcl2a-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_be18cfd3-325d-46b8-b957-cda7ecb60594.png?v=1776330096</image:loc>
      <image:title>Mixed Calibration Standard 2A, ICP, Rev 3.3 - RMXCL2A-500</image:title>
      <image:caption>Mixed Calibration Standard 2A, ICP, Rev 3.3 - RMXCL2A-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-3-icp-rmxcl3-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2fd35418-fe8d-4b22-8f72-5009feb972c2.png?v=1776330098</image:loc>
      <image:title>Mixed Calibration Standard 3, ICP - RMXCL3-100</image:title>
      <image:caption>Mixed Calibration Standard 3, ICP - RMXCL3-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromium-icp-standard-1000-ppm-cr-in-3-hcl-pcr1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_26e377c9-494e-407b-9582-84ac09d6eef0.png?v=1776330096</image:loc>
      <image:title>Chromium ICP Standard, 1000 ppm Cr in 3% HCl - PCR1KH-500</image:title>
      <image:caption>Chromium ICP Standard, 1000 ppm Cr in 3% HCl - PCR1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cesium-icp-standard-10000-ppm-cs-in-5-hno-pcs10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ba6ead38-4c67-47d9-b602-6fd38331b65a.png?v=1776330099</image:loc>
      <image:title>Cesium ICP Standard, 10,000 ppm Cs in 5% HNO? - PCS10KN-500</image:title>
      <image:caption>Cesium ICP Standard, 10,000 ppm Cs in 5% HNO? - PCS10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/multichem-19-standard-rmulti19-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e330f08c-c212-4dcf-b163-a89c6f90be0e.png?v=1776330098</image:loc>
      <image:title>Multichem-19 Standard - RMULTI19-1N</image:title>
      <image:caption>Multichem-19 Standard - RMULTI19-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-3r-icp-rmxcl3r-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_192a6922-9708-4e1d-8361-683524dacd44.png?v=1776330097</image:loc>
      <image:title>Mixed Calibration Standard 3R, ICP - RMXCL3R-500</image:title>
      <image:caption>Mixed Calibration Standard 3R, ICP - RMXCL3R-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-50-ppm-mo-pmo50n-120</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_905e712d-1f67-4295-80bb-d3971ef6d4eb.png?v=1776330101</image:loc>
      <image:title>Molybdenum ICP Standard, 50 ppm Mo - PMO50N-120</image:title>
      <image:caption>Molybdenum ICP Standard, 50 ppm Mo - PMO50N-120</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sulfur-icp-standard-1000-ppm-s-in-ho-ps1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_11992747-521f-4c27-8f53-0be8e2e3812c.png?v=1776330099</image:loc>
      <image:title>Sulfur ICP Standard, 1000 ppm S in H?O - PS1KW-100</image:title>
      <image:caption>Sulfur ICP Standard, 1000 ppm S in H?O - PS1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/matrix-modifier-40-wv-ammonium-phosphate-in-water-mmap40w-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_022838e0-0fad-4d38-84a0-941540320d9e.png?v=1776330099</image:loc>
      <image:title>Matrix Modifier, 40% (w/v) Ammonium Phosphate in Water - MMAP40W-500</image:title>
      <image:caption>Matrix Modifier, 40% (w/v) Ammonium Phosphate in Water - MMAP40W-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-100-ppm-na-96-ppm-so-50-ppm-ca-5-ppm-mg-1-ppm-u-1-ppm-v-in-5-hno-rpmx079n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a3c6b6aa-0a3a-4761-88d3-1a4ea07a35b7.png?v=1776330098</image:loc>
      <image:title>Mixed ICP Standard 100 ppm Na, 96 ppm SO?, 50 ppm Ca, 5 ppm Mg, 1 ppm U, 1 ppm V in 5% HNO? - RPMX079N-500N</image:title>
      <image:caption>Mixed ICP Standard 100 ppm Na, 96 ppm SO?, 50 ppm Ca, 5 ppm Mg, 1 ppm U, 1 ppm V in 5% HNO? - RPMX079N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/multi-ion-standard-100-ppm-each-ca-mg-na-nh-li-k-for-ion-chromatography-mstd200-4</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_5f39b50f-124e-4172-bcc8-be07a1d3e9c8.png?v=1776330103</image:loc>
      <image:title>Multi-Ion Standard 100 ppm each Ca²?, Mg²?, Na?, NH??, Li?, K? for Ion Chromatography - MSTD200-4</image:title>
      <image:caption>Multi-Ion Standard 100 ppm each Ca²?, Mg²?, Na?, NH??, Li?, K? for Ion Chromatography - MSTD200-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/matrix-modifier-40-wv-ammonium-phosphate-in-water-mmap40w-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d4496dcd-4ff2-4d5f-bd98-97e94cb9b427.png?v=1776330099</image:loc>
      <image:title>Matrix Modifier, 40% (w/v) Ammonium Phosphate in Water - MMAP40W-50</image:title>
      <image:caption>Matrix Modifier, 40% (w/v) Ammonium Phosphate in Water - MMAP40W-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/multichem-17-standard-in-7-nitric-acid-rmulti17-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_294ea173-ad21-415f-9374-d244ac1cc81c.png?v=1776330097</image:loc>
      <image:title>Multichem-17 Standard in 7% Nitric Acid - RMULTI17-1N</image:title>
      <image:caption>Multichem-17 Standard in 7% Nitric Acid - RMULTI17-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromium-icp-standard-1000-ppm-cr-in-3-hno-pcr1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_116795d7-2310-4893-9b0e-a28c33339b0e.png?v=1776330098</image:loc>
      <image:title>Chromium ICP Standard, 1000 ppm Cr in 3% HNO? - PCR1KN-100</image:title>
      <image:caption>Chromium ICP Standard, 1000 ppm Cr in 3% HNO? - PCR1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hexavalent-chromium-icp-standard-1000-ppm-cr-in-3-hno-pcr61kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_296d5548-2e7b-48db-bbaa-2f757d86f390.png?v=1776330099</image:loc>
      <image:title>Hexavalent Chromium ICP Standard, 1000 ppm Cr?? in 3% HNO? - PCR61KN-500</image:title>
      <image:caption>Hexavalent Chromium ICP Standard, 1000 ppm Cr?? in 3% HNO? - PCR61KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hexavalent-chromium-icp-standard-10000-ppm-cr-in-5-hcl-pcr610kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b74d812d-1d66-4893-bc66-60aaf7e53143.png?v=1776330105</image:loc>
      <image:title>Hexavalent Chromium ICP Standard, 10,000 ppm Cr?? in 5% HCl - PCR610KH-100</image:title>
      <image:caption>Hexavalent Chromium ICP Standard, 10,000 ppm Cr?? in 5% HCl - PCR610KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-100-ppm-k-na-in-3-hno-rpmx095n-250n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c75d318a-4424-4e85-856f-dc496de8fa45.png?v=1776330098</image:loc>
      <image:title>Mixed ICP Standard 100 ppm K, Na in 3% HNO? - RPMX095N-250N</image:title>
      <image:caption>Mixed ICP Standard 100 ppm K, Na in 3% HNO? - RPMX095N-250N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/releasing-agent-lanthanum-chloride-5-la-in-5-hcl-mmla50kh-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3f5e7222-ff2b-45d5-bbfe-588747d200e5.png?v=1776330100</image:loc>
      <image:title>Releasing Agent, Lanthanum Chloride, 5% La in 5% HCl - MMLA50KH-50</image:title>
      <image:caption>Releasing Agent, Lanthanum Chloride, 5% La in 5% HCl - MMLA50KH-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hexavalent-chromium-icp-standard-1000-ppm-cr-in-3-hno-pcr61kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8ffe7e0c-04f5-428c-851d-fdd5403a7184.png?v=1776330098</image:loc>
      <image:title>Hexavalent Chromium ICP Standard, 1000 ppm Cr?? in 3% HNO? - PCR61KN-100</image:title>
      <image:caption>Hexavalent Chromium ICP Standard, 1000 ppm Cr?? in 3% HNO? - PCR61KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/multielement-icp-standard-4000-ppm-cu-500-ppm-v-100-ppm-fe-in-5-hno-rpmx0291-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_758b85c0-f341-4a45-a6dd-33f2110ec36c.png?v=1776330099</image:loc>
      <image:title>Multielement ICP Standard, 4000 ppm Cu / 500 ppm V / 100 ppm Fe in 5% HNO? - RPMX0291-500N</image:title>
      <image:caption>Multielement ICP Standard, 4000 ppm Cu / 500 ppm V / 100 ppm Fe in 5% HNO? - RPMX0291-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/multielement-icp-standard-5-elements-1000-ppm-in-5-hno-rpmx016n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3d2cf3a8-aa74-49f9-9ada-17ad9f693cb0.png?v=1776330099</image:loc>
      <image:title>Multielement ICP Standard, 5 elements @ 1,000 ppm in 5% HNO? - RPMX016N-500N</image:title>
      <image:caption>Multielement ICP Standard, 5 elements @ 1,000 ppm in 5% HNO? - RPMX016N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-2-icp-rmxcl2-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c9b081dd-0e18-4dc7-b4f7-15cff751775f.png?v=1776330102</image:loc>
      <image:title>Mixed Calibration Standard 2, ICP - RMXCL2-100</image:title>
      <image:caption>Mixed Calibration Standard 2, ICP - RMXCL2-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/standard-3-for-icp-3300-med-rp33med0-1a</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_a4a4f961-568d-4e46-981e-dff5b584998f.png?v=1776330101</image:loc>
      <image:title>Standard #3 for ICP 3300 Med - RP33MED0-1A</image:title>
      <image:caption>Standard #3 for ICP 3300 Med - RP33MED0-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-1a-icp-rmxcl1a-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_68918437-42bd-4d35-bc24-489aade5aaf9.png?v=1776330100</image:loc>
      <image:title>Mixed Calibration Standard 1A, ICP - RMXCL1A-100</image:title>
      <image:caption>Mixed Calibration Standard 1A, ICP - RMXCL1A-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/dysprosium-icp-standard-1000-ppm-dy-in-3-hno-pdy1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_536d2bb3-6be8-4ed5-84a5-ea9c14d81869.png?v=1776330098</image:loc>
      <image:title>Dysprosium ICP Standard, 1000 ppm Dy in 3% HNO? - PDY1KN-100</image:title>
      <image:caption>Dysprosium ICP Standard, 1000 ppm Dy in 3% HNO? - PDY1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sulfur-icp-standard-10000-ppm-s-in-ho-ps10kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_64b917ee-3163-49c4-9357-2c1867cab5f0.png?v=1776330101</image:loc>
      <image:title>Sulfur ICP Standard, 10,000 ppm S in H?O - PS10KW-100</image:title>
      <image:caption>Sulfur ICP Standard, 10,000 ppm S in H?O - PS10KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-500-ppm-na-480-ppm-so-250-ppm-ca-25-ppm-mg-150-ppm-u-10-ppm-v-in-5-hno-rpmx080n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9abc7f5b-664e-4d08-a29b-b442d569cbba.png?v=1776330100</image:loc>
      <image:title>Mixed ICP Standard 500 ppm Na, 480 ppm SO?, 250 ppm Ca, 25 ppm Mg, 150 ppm U, 10 ppm V in 5% HNO? - RPMX080N-500N</image:title>
      <image:caption>Mixed ICP Standard 500 ppm Na, 480 ppm SO?, 250 ppm Ca, 25 ppm Mg, 150 ppm U, 10 ppm V in 5% HNO? - RPMX080N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-100-ppm-mo-in-ho-rpmo100w-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ba6822d8-7461-4465-a512-6e78e63ebcb2.png?v=1776330101</image:loc>
      <image:title>Molybdenum ICP Standard, 100 ppm Mo in H?O - RPMO100W-100N</image:title>
      <image:caption>Molybdenum ICP Standard, 100 ppm Mo in H?O - RPMO100W-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromium-icp-standard-10000-ppm-cr-in-5-hno-pcr10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a24dd0ef-2a3f-415d-9265-a7dd4463fbdf.png?v=1776330101</image:loc>
      <image:title>Chromium ICP Standard, 10,000 ppm Cr in 5% HNO? - PCR10KN-100</image:title>
      <image:caption>Chromium ICP Standard, 10,000 ppm Cr in 5% HNO? - PCR10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/scandium-icp-standard-10000-ppm-sc-in-5-hno-psc10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3a724f13-3275-45b9-8a65-148627fef1f8.png?v=1776330100</image:loc>
      <image:title>Scandium ICP Standard, 10,000 ppm Sc in 5% HNO? - PSC10KN-100</image:title>
      <image:caption>Scandium ICP Standard, 10,000 ppm Sc in 5% HNO? - PSC10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-icp-standard-10000-ppm-cu-in-5-hno-pcu10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d44fbb2f-1ca9-4c72-8307-43227f85ca4d.png?v=1776330102</image:loc>
      <image:title>Copper ICP Standard, 10,000 ppm Cu in 5% HNO? - PCU10KN-100</image:title>
      <image:caption>Copper ICP Standard, 10,000 ppm Cu in 5% HNO? - PCU10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/multielement-icp-standard-7-elements-1000-ppm-in-5-hno-rpmx014n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a18defd7-5b45-41a9-9e90-97fceb422497.png?v=1776330104</image:loc>
      <image:title>Multielement ICP Standard, 7 elements @ 1,000 ppm in 5% HNO? - RPMX014N-500N</image:title>
      <image:caption>Multielement ICP Standard, 7 elements @ 1,000 ppm in 5% HNO? - RPMX014N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-3a-icp-rev-33-rmxcl3a-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5ce643c8-daa7-4881-8b0e-88012a258859.png?v=1776330102</image:loc>
      <image:title>Mixed Calibration Standard 3A, ICP, Rev 3.3 - RMXCL3A-500</image:title>
      <image:caption>Mixed Calibration Standard 3A, ICP, Rev 3.3 - RMXCL3A-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/proteospec-sulfo-nhs-lc-biotin-sulfosuccinimidyl-6-biotinamidohexanoate-rmb14206-100cm</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-proteospec_group_4c2a124a-d74e-4e9d-829f-2eec006ba6da.png?v=1776330102</image:loc>
      <image:title>ProteoSpec? Sulfo-NHS-LC-Biotin Sulfosuccinimidyl-6-(biotinamido)hexanoate - RMB14206-100CM</image:title>
      <image:caption>ProteoSpec Sulfo-NHS-LC-Biotin Sulfosuccinimidyl-6-(biotinamido)hexanoate - RMB14206-100CM</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-100-ppm-co-cu-fe-mg-mn-zn-rpmx054n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_7fee9f66-21cc-482b-9037-7c7bccc32207.png?v=1776330104</image:loc>
      <image:title>Mixed ICP Standard: 100 ppm Co, Cu, Fe, Mg, Mn, Zn - RPMX054N-500N</image:title>
      <image:caption>Mixed ICP Standard: 100 ppm Co, Cu, Fe, Mg, Mn, Zn - RPMX054N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/yttrium-icp-ms-standard-1000-ppm-y-in-3-hno-msy1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e7998f57-6347-4754-b829-9a5d258c8d02.png?v=1776330099</image:loc>
      <image:title>Yttrium ICP-MS Standard, 1000 ppm Y in 3% HNO? - MSY1KN-100</image:title>
      <image:caption>Yttrium ICP-MS Standard, 1000 ppm Y in 3% HNO? - MSY1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/erbium-icp-standard-1000-ppm-er-in-3-hno-per1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_252dab90-4c02-40ad-af2a-63ec533c9f85.png?v=1776330102</image:loc>
      <image:title>Erbium ICP Standard, 1000 ppm Er in 3% HNO? - PER1KN-500</image:title>
      <image:caption>Erbium ICP Standard, 1000 ppm Er in 3% HNO? - PER1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-10-ppm-ga-in-rb-in-5-hno3-rpmx039n-100b</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_35bcfdf2-b240-4d6c-9c99-4489b88d67a6.png?v=1776330101</image:loc>
      <image:title>Mixed ICP Standard, 10 ppm: Ga, In, Rb in 5% HNO3 - RPMX039N-100B</image:title>
      <image:caption>Mixed ICP Standard, 10 ppm: Ga, In, Rb in 5% HNO3 - RPMX039N-100B</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-100-ppm-y-la-ce-pr-nd-fe-ti-si-in-3-hno-rpmx096n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_80209b86-0746-42cc-9a43-a9ebc50063fe.png?v=1776330104</image:loc>
      <image:title>Mixed ICP Standard 100 ppm Y, La, Ce, Pr, Nd, Fe, Ti, Si in 3% HNO? - RPMX096N-500N</image:title>
      <image:caption>Mixed ICP Standard 100 ppm Y, La, Ce, Pr, Nd, Fe, Ti, Si in 3% HNO? - RPMX096N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-100-ppm-k-na-in-3-hno-rpmx095n-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f9920647-8bf2-48a5-816d-bf43822f248c.png?v=1776330101</image:loc>
      <image:title>Mixed ICP Standard 100 ppm K, Na in 3% HNO? - RPMX095N-100N</image:title>
      <image:caption>Mixed ICP Standard 100 ppm K, Na in 3% HNO? - RPMX095N-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/scandium-icp-standard-1000-ppm-sc-in-3-hno-psc1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2d7b157e-ce1a-488d-aaf8-b55e3816680a.png?v=1776330101</image:loc>
      <image:title>Scandium ICP Standard, 1000 ppm Sc in 3% HNO? - PSC1KN-100</image:title>
      <image:caption>Scandium ICP Standard, 1000 ppm Sc in 3% HNO? - PSC1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-icp-standard-10000-ppm-cu-in-5-hno-pcu10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d2ecab7f-7470-4a6b-b571-c56c8f8fb8fb.png?v=1776330104</image:loc>
      <image:title>Copper ICP Standard, 10,000 ppm Cu in 5% HNO? - PCU10KN-500</image:title>
      <image:caption>Copper ICP Standard, 10,000 ppm Cu in 5% HNO? - PCU10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-std-1000-ppm-camg600-ppm-srk400-ppm-ba-50ppm-p20-ppm-fe-4-ppm-mn2-ppm-zn1-rpmx116n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_75ccfcf9-4850-4b3a-adf3-3f63017a01ef.png?v=1776330104</image:loc>
      <image:title>Mixed ICP Std: 1000 ppm Ca/Mg,600 ppm Sr/K,400 ppm Ba, 50ppm P,20 ppm Fe, 4 ppm Mn,2 ppm Zn,1 - RPMX116N-500N</image:title>
      <image:caption>Mixed ICP Std: 1000 ppm Ca/Mg,600 ppm Sr/K,400 ppm Ba, 50ppm P,20 ppm Fe, 4 ppm Mn,2 ppm Zn,1 - RPMX116N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-blend-12-elements-100-ppm-in-5-hno-rpmx053n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b6141104-345b-4fd1-9b3c-2083f648d426.png?v=1776330102</image:loc>
      <image:title>ICP Blend, 12 Elements @ 100 ppm in 5% HNO? - RPMX053N-500N</image:title>
      <image:caption>ICP Blend, 12 Elements @ 100 ppm in 5% HNO? - RPMX053N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-25ppm-each-al-cr-cu-fe-ni-w-rpmx122n-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ae2213cf-973d-46b2-90ba-a9c45d8b232e.png?v=1776330101</image:loc>
      <image:title>Mixed ICP Standard 2.5ppm each Al, Cr, Cu, Fe, Ni, W - RPMX122N-1N</image:title>
      <image:caption>Mixed ICP Standard 2.5ppm each Al, Cr, Cu, Fe, Ni, W - RPMX122N-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/europium-icp-standard-1000-ppm-eu-in-3-hno-peu1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9e8a4656-f3c5-4cf2-a945-57c9f55dda71.png?v=1776330106</image:loc>
      <image:title>Europium ICP Standard, 1000 ppm Eu in 3% HNO? - PEU1KN-100</image:title>
      <image:caption>Europium ICP Standard, 1000 ppm Eu in 3% HNO? - PEU1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-icp-standard-1000-ppm-cu-in-3-hno-pcu1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6ef1dd1b-8b54-4db5-b7df-7cc8707ff267.png?v=1776330105</image:loc>
      <image:title>Copper ICP Standard, 1000 ppm Cu in 3% HNO? - PCU1KN-500</image:title>
      <image:caption>Copper ICP Standard, 1000 ppm Cu in 3% HNO? - PCU1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/p7-library-fit-solution-100-ppm-al-sbas-pb-p-s-tl-10-ppm-cd-fe-mn-zn-in-5-hno-rpmx092n-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ab905c9e-b7d3-48df-b5db-38478313035d.png?v=1776330102</image:loc>
      <image:title>P7 Library Fit Solution 100 ppm Al, Sb,As, Pb, P, S, Tl / 10 ppm Cd, Fe, Mn Zn in 5% HNO? - RPMX092N-1N</image:title>
      <image:caption>P7 Library Fit Solution 100 ppm Al, Sb,As, Pb, P, S, Tl / 10 ppm Cd, Fe, Mn Zn in 5% HNO? - RPMX092N-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-10000-ppm-ca-p-k-1000-ppm-mg-na-s-200-ppm-cu-fe-mn-mo-zn-in-5-hno-rmxicpsx-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9cc08e4d-999a-4342-aabe-74a0a0a2417f.png?v=1776330106</image:loc>
      <image:title>Mixed ICP Standard 10,000 ppm Ca, P, K; 1000 ppm Mg, Na, S; 200 ppm Cu, Fe, Mn, Mo, Zn in 5% HNO? - RMXICPSX-500N</image:title>
      <image:caption>Mixed ICP Standard 10,000 ppm Ca, P, K; 1000 ppm Mg, Na, S; 200 ppm Cu, Fe, Mn, Mo, Zn in 5% HNO? - RMXICPSX-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/antimony-icp-standard-1000-ppm-sb-in-hotartaric-acidtr-hno-psb1kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9c767ef5-41c4-466a-8f4d-daf5e3bd9791.png?v=1776330101</image:loc>
      <image:title>Antimony ICP Standard, 1000 ppm Sb in H?O/Tartaric Acid/tr HNO? - PSB1KW-500</image:title>
      <image:caption>Antimony ICP Standard, 1000 ppm Sb in H?O/Tartaric Acid/tr HNO? - PSB1KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/dysprosium-icp-standard-1000-ppm-dy-in-3-hno-pdy1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ec18f72b-c664-4525-85c1-9e526045f990.png?v=1776330106</image:loc>
      <image:title>Dysprosium ICP Standard, 1000 ppm Dy in 3% HNO? - PDY1KN-500</image:title>
      <image:caption>Dysprosium ICP Standard, 1000 ppm Dy in 3% HNO? - PDY1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-5ppm-each-al-cr-cu-fe-ni-w-rpmx123n-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_692d01f2-c240-4928-9ade-6cc0eadac84c.png?v=1776330101</image:loc>
      <image:title>Mixed ICP Standard 5ppm each Al, Cr, Cu, Fe, Ni, W - RPMX123N-1N</image:title>
      <image:caption>Mixed ICP Standard 5ppm each Al, Cr, Cu, Fe, Ni, W - RPMX123N-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silicon-icp-standard-10000-ppm-si-in-hotr-hf-psi10kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b7265039-bb7c-470d-860c-f3dbac9ef59c.png?v=1776330103</image:loc>
      <image:title>Silicon ICP Standard, 10,000 ppm Si in H?O/tr HF - PSI10KW-500</image:title>
      <image:caption>Silicon ICP Standard, 10,000 ppm Si in H?O/tr HF - PSI10KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/standard-4-for-icp-3300-low-rp33low0-1a</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_0bc3b681-627d-4b2b-8c4f-c030ce4865ff.png?v=1776330104</image:loc>
      <image:title>Standard #4 for ICP 3300 Low - RP33LOW0-1A</image:title>
      <image:caption>Standard #4 for ICP 3300 Low - RP33LOW0-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sulfur-icp-standard-10000-ppm-s-in-ho-ps10kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a8bef7bc-24c6-4f22-8fa5-f63dc840c6ff.png?v=1776330104</image:loc>
      <image:title>Sulfur ICP Standard, 10,000 ppm S in H?O - PS10KW-500</image:title>
      <image:caption>Sulfur ICP Standard, 10,000 ppm S in H?O - PS10KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphorus-standard-125-ppm-p-rp33012p-500a</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_ebadfb9a-45fc-4b00-9559-f707314a1e61.png?v=1776330105</image:loc>
      <image:title>Phosphorus Standard, 12.5 ppm P - RP33012P-500A</image:title>
      <image:caption>Phosphorus Standard, 12.5 ppm P - RP33012P-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/antimony-icp-standard-1000-ppm-sb-in-hotartaric-acidtr-hno-psb1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0fe1b975-83bb-47d9-828e-f4a07a37252f.png?v=1776330109</image:loc>
      <image:title>Antimony ICP Standard, 1000 ppm Sb in H?O/Tartaric Acid/tr HNO? - PSB1KW-100</image:title>
      <image:caption>Antimony ICP Standard, 1000 ppm Sb in H?O/Tartaric Acid/tr HNO? - PSB1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromium-icp-standard-1000-ppm-cr-in-3-hno-pcr1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_da4c14c9-aa78-4931-b56a-f09f7f5e5f73.png?v=1776330103</image:loc>
      <image:title>Chromium ICP Standard, 1000 ppm Cr in 3% HNO? - PCR1KN-500</image:title>
      <image:caption>Chromium ICP Standard, 1000 ppm Cr in 3% HNO? - PCR1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-50-ppm-al-b-ba-ca-fe-k-li-mg-mn-na-pb-sr-zn-rpmx100n-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_96543e0e-18e3-4f66-8069-72c941f7a1e4.png?v=1776330107</image:loc>
      <image:title>Mixed ICP Standard 50 ppm Al, B, Ba, Ca, Fe, K, Li, Mg, Mn, Na, Pb, Sr, Zn - RPMX100N-1N</image:title>
      <image:caption>Mixed ICP Standard 50 ppm Al, B, Ba, Ca, Fe, K, Li, Mg, Mn, Na, Pb, Sr, Zn - RPMX100N-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-10-ppm-ge-hf-nb-p-re-ta-sn-w-zr-in-5-hno3-tr-hf-rpmx037n-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_77f0589b-65f1-4e3a-9e4d-865e7ca13606.png?v=1776330109</image:loc>
      <image:title>Mixed ICP Standard, 10 ppm: Ge, Hf, Nb, P, Re, Ta, Sn, W, Zr in 5% HNO3 / tr HF - RPMX037N-100N</image:title>
      <image:caption>Mixed ICP Standard, 10 ppm: Ge, Hf, Nb, P, Re, Ta, Sn, W, Zr in 5% HNO3 / tr HF - RPMX037N-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-5r-icp-rmxcl5r-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500b_ed1461b2-9d56-400d-adee-bedf91752eed.png?v=1776330104</image:loc>
      <image:title>Mixed Calibration Standard 5R, ICP - RMXCL5R-500</image:title>
      <image:caption>Mixed Calibration Standard 5R, ICP - RMXCL5R-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/scandium-icp-standard-1000-ppm-sc-in-3-hno-psc1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_657507a9-3cd0-4c34-be9f-593e8c6b2008.png?v=1776330105</image:loc>
      <image:title>Scandium ICP Standard, 1000 ppm Sc in 3% HNO? - PSC1KN-500</image:title>
      <image:caption>Scandium ICP Standard, 1000 ppm Sc in 3% HNO? - PSC1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cesium-icp-standard-10000-ppm-cs-in-5-hno-pcs10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0ece461b-591a-4b7f-a92a-648abc6816f2.png?v=1776330105</image:loc>
      <image:title>Cesium ICP Standard, 10,000 ppm Cs in 5% HNO? - PCS10KN-100</image:title>
      <image:caption>Cesium ICP Standard, 10,000 ppm Cs in 5% HNO? - PCS10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-5-icp-rmxcl5-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_90bcecd0-c878-409e-9797-dc47ce16eb0c.png?v=1776330106</image:loc>
      <image:title>Mixed Calibration Standard 5, ICP - RMXCL5-100</image:title>
      <image:caption>Mixed Calibration Standard 5, ICP - RMXCL5-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/erbium-icp-standard-1000-ppm-er-in-3-hno-per1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_48e76b9c-d21d-4a9c-9dd3-8590523f76c1.png?v=1776330105</image:loc>
      <image:title>Erbium ICP Standard, 1000 ppm Er in 3% HNO? - PER1KN-100</image:title>
      <image:caption>Erbium ICP Standard, 1000 ppm Er in 3% HNO? - PER1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-1000-ppm-camg-600-ppm-srk-400-ppm-ba-20-ppm-fesi-4-ppm-mn-2-ppm-zn-1-ppm-pb-rpmx098n-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4c1caffc-7a7d-4bfc-905a-acba04f10320.png?v=1776330106</image:loc>
      <image:title>Mixed ICP Standard 1000 ppm Ca,Mg; 600 ppm Sr,K; 400 ppm Ba; 20 ppm Fe,Si; 4 ppm Mn; 2 ppm Zn; 1 ppm Pb - RPMX098N-1N</image:title>
      <image:caption>Mixed ICP Standard 1000 ppm Ca,Mg; 600 ppm Sr,K; 400 ppm Ba; 20 ppm Fe,Si; 4 ppm Mn; 2 ppm Zn; 1 ppm Pb - RPMX098N-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/gallium-icp-standard-1000-ppm-ga-in-3-hno-pga1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e07a0f02-bb1b-4e80-985f-21eec281dab2.png?v=1776330106</image:loc>
      <image:title>Gallium ICP Standard, 1000 ppm Ga in 3% HNO? - PGA1KN-100</image:title>
      <image:caption>Gallium ICP Standard, 1000 ppm Ga in 3% HNO? - PGA1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/iron-icp-standard-10000-ppm-fe-in-5-hno-pfe10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_25542a67-f87b-4355-9511-11e11f50ce56.png?v=1776330106</image:loc>
      <image:title>Iron ICP Standard, 10,000 ppm Fe in 5% HNO? - PFE10KN-50</image:title>
      <image:caption>Iron ICP Standard, 10,000 ppm Fe in 5% HNO? - PFE10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/arsenic-icp-standard-10000-ppm-as-in-5-hno-pas10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3766882c-2c06-4463-a913-7c65cd195880.png?v=1776330107</image:loc>
      <image:title>Arsenic ICP Standard, 10,000 ppm As in 5% HNO? - PAS10KN-100</image:title>
      <image:caption>Arsenic ICP Standard, 10,000 ppm As in 5% HNO? - PAS10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hexavalent-chromium-icp-standard-10000-ppm-cr-in-5-hno-pcr610kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_bf7ba482-c374-4bbb-acd9-a47891549cf4.png?v=1776330108</image:loc>
      <image:title>Hexavalent Chromium ICP Standard, 10,000 ppm Cr?? in 5% HNO? - PCR610KN-50</image:title>
      <image:caption>Hexavalent Chromium ICP Standard, 10,000 ppm Cr?? in 5% HNO? - PCR610KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-set-a-icp-standards-1a-5a-rmxclsta-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3c0ac2e1-1d8c-43a3-a467-5173cd203eaa.png?v=1776330106</image:loc>
      <image:title>Mixed Calibration Set A, ICP (Standards 1A - 5A) - RMXCLSTA-500</image:title>
      <image:caption>Mixed Calibration Set A, ICP (Standards 1A - 5A) - RMXCLSTA-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/europium-icp-standard-1000-ppm-eu-in-3-hno-peu1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0e8bcdd4-016b-4495-9a65-b004de1256b6.png?v=1776330105</image:loc>
      <image:title>Europium ICP Standard, 1000 ppm Eu in 3% HNO? - PEU1KN-500</image:title>
      <image:caption>Europium ICP Standard, 1000 ppm Eu in 3% HNO? - PEU1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silver-icp-standard-10000-ppm-ag-in-5-hno-pag10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500b_c8c427c3-9ee0-49d9-8833-90f074185e68.png?v=1776330105</image:loc>
      <image:title>Silver ICP Standard, 10,000 ppm Ag in 5% HNO? - PAG10KN-500</image:title>
      <image:caption>Silver ICP Standard, 10,000 ppm Ag in 5% HNO? - PAG10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-10-ppm-sb-as-ba-be-tl-b-bi-cd-cr-ti-co-cu-fe-pb-v-li-mn-mo-ni-in-5-hno-rpmx201n-100b</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0d39afb8-17fd-404a-8e24-4837dc255908.png?v=1776330107</image:loc>
      <image:title>Mixed ICP Standard, 10 ppm Sb, As, Ba, Be, Tl, B, Bi, Cd, Cr, Ti, Co, Cu, Fe, Pb, V, Li, Mn, Mo, Ni, in 5% HNO? - RPMX201N-100B</image:title>
      <image:caption>Mixed ICP Standard, 10 ppm Sb, As, Ba, Be, Tl, B, Bi, Cd, Cr, Ti, Co, Cu, Fe, Pb, V, Li, Mn, Mo, Ni, in 5% HNO? - RPMX201N-100B</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/acid-blank-5-vv-nitric-acid-pnacid5-1l</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_7efb0b6d-0693-4511-aec5-62486d1b444d.png?v=1776330106</image:loc>
      <image:title>Acid Blank, 5% (v/v) Nitric Acid - PNACID5-1L</image:title>
      <image:caption>Acid Blank, 5% (v/v) Nitric Acid - PNACID5-1L</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-4-icp-rmxcl4-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a07b48b4-144c-4fee-9ebe-a39421e46987.png?v=1776330105</image:loc>
      <image:title>Mixed Calibration Standard 4, ICP - RMXCL4-500</image:title>
      <image:caption>Mixed Calibration Standard 4, ICP - RMXCL4-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-100-ppm-p-k-in-6-hcl-rpmx055h-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_7532bcca-3b21-480b-8230-bd8fbf27d5f7.png?v=1776330110</image:loc>
      <image:title>Mixed ICP Standard: 100 ppm P, K in 6% HCl - RPMX055H-500N</image:title>
      <image:caption>Mixed ICP Standard: 100 ppm P, K in 6% HCl - RPMX055H-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/gallium-icp-standard-1000-ppm-ga-in-3-hno-pga1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_31a05e25-585c-4a88-adaf-f85542202cf8.png?v=1776330110</image:loc>
      <image:title>Gallium ICP Standard, 1000 ppm Ga in 3% HNO? - PGA1KN-500</image:title>
      <image:caption>Gallium ICP Standard, 1000 ppm Ga in 3% HNO? - PGA1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-4-icp-rmxcl4-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_55ccdaeb-7398-4152-8fc6-3ca25789ec1d.png?v=1776330109</image:loc>
      <image:title>Mixed Calibration Standard 4, ICP - RMXCL4-100</image:title>
      <image:caption>Mixed Calibration Standard 4, ICP - RMXCL4-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-blend-in-3-hno3-1000-ppm-ca-k-mg-na-rpmx126n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1900d5ef-f858-40d1-8bfc-70dbe88c5569.png?v=1776330109</image:loc>
      <image:title>ICP Blend in 3% HNO3 1000 ppm Ca, K, Mg, Na - RPMX126N-500N</image:title>
      <image:caption>ICP Blend in 3% HNO3 1000 ppm Ca, K, Mg, Na - RPMX126N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/1ppm-ascrnicd20ppm-mnpb50ppm-alcu100ppm-fe200ppm-zn300ppm-p-3-hno3-rpmx121n-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a89c39d2-26d4-4bca-973d-503c96f73c2c.png?v=1776330109</image:loc>
      <image:title>1ppm As,Cr,Ni,Cd/20ppm Mn,Pb/50ppm Al,Cu/100ppm Fe/200ppm Zn/300ppm P /3% HNO3 - RPMX121N-100N</image:title>
      <image:caption>1ppm As,Cr,Ni,Cd/20ppm Mn,Pb/50ppm Al,Cu/100ppm Fe/200ppm Zn/300ppm P /3% HNO3 - RPMX121N-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/standard-1-for-icp-3300-high-rp33high-1a</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_39717a77-e6b0-4b7f-a245-b35d03bbb1b2.png?v=1776330112</image:loc>
      <image:title>Standard #1 for ICP 3300 High - RP33HIGH-1A</image:title>
      <image:caption>Standard #1 for ICP 3300 High - RP33HIGH-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-icp-standard-10000-ppm-na-in-3-hno-pna10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_22f8f2cc-222d-46a4-b2ca-4bc6114d5c64.png?v=1776330110</image:loc>
      <image:title>Sodium ICP Standard, 10,000 ppm Na in 3% HNO? - PNA10KN-50</image:title>
      <image:caption>Sodium ICP Standard, 10,000 ppm Na in 3% HNO? - PNA10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-mixed-standard-50ppm-cufemnzn-500ppm-kp-in-5-hno3-rpmx127n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_44404400-2956-4870-97f2-d199e868b9e1.png?v=1776330110</image:loc>
      <image:title>ICP Mixed Standard 50ppm Cu,Fe,Mn,Zn 500ppm K,P in 5% HNO3 - RPMX127N-500N</image:title>
      <image:caption>ICP Mixed Standard 50ppm Cu,Fe,Mn,Zn 500ppm K,P in 5% HNO3 - RPMX127N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sulfur-icp-standard-10000-ppm-s-in-ho-ps10kw-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d1f60976-9417-4e38-add8-ac7a4545377f.png?v=1776330111</image:loc>
      <image:title>Sulfur ICP Standard, 10,000 ppm S in H?O - PS10KW-50</image:title>
      <image:caption>Sulfur ICP Standard, 10,000 ppm S in H?O - PS10KW-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/standard-2-for-icp-3300-mid-rp33mid0-1a</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_74002654-6a42-45c3-b3fe-a5a55810650b.png?v=1776330113</image:loc>
      <image:title>Standard #2 for ICP 3300 Mid - RP33MID0-1A</image:title>
      <image:caption>Standard #2 for ICP 3300 Mid - RP33MID0-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/iron-icp-standard-100-ppm-fe-in-dilute-hno-rpfe01kn-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3c5a9169-0006-442c-9b6f-a287bad28fd9.png?v=1776330110</image:loc>
      <image:title>Iron ICP Standard, 100 ppm Fe in dilute HNO? - RPFE01KN-100N</image:title>
      <image:caption>Iron ICP Standard, 100 ppm Fe in dilute HNO? - RPFE01KN-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/selenium-icp-standard-10000-ppm-se-in-5-hno-pse10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a311e1eb-631a-4960-bdfa-3aecb279ce3f.png?v=1776330112</image:loc>
      <image:title>Selenium ICP Standard, 10,000 ppm Se in 5% HNO? - PSE10KN-50</image:title>
      <image:caption>Selenium ICP Standard, 10,000 ppm Se in 5% HNO? - PSE10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-anion-standard-rpmx0510-100a</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_59f585b3-6ad3-44c2-bf1a-b061ae9aa92e.png?v=1776330108</image:loc>
      <image:title>Mixed Anion Standard - RPMX0510-100A</image:title>
      <image:caption>Mixed Anion Standard - RPMX0510-100A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-icp-standard-100-ppm-cu-in-dilute-hno-rpcu01kn-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_308f4202-9f4a-464a-952a-c052630668ab.png?v=1776330109</image:loc>
      <image:title>Copper ICP Standard, 100 ppm Cu in dilute HNO? - RPCU01KN-100N</image:title>
      <image:caption>Copper ICP Standard, 100 ppm Cu in dilute HNO? - RPCU01KN-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/selenium-icp-standard-1000-ppm-se-in-3-hno-pse1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4c45198a-3cd8-4a9d-a689-abe1ec1f8c2c.png?v=1776330111</image:loc>
      <image:title>Selenium ICP Standard, 1000 ppm Se in 3% HNO? - PSE1KN-100</image:title>
      <image:caption>Selenium ICP Standard, 1000 ppm Se in 3% HNO? - PSE1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/iron-icp-standard-10000-ppm-fe-in-5-hno-pfe10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_bcb878fa-2f54-4422-b7b5-bd1406acb730.png?v=1776330109</image:loc>
      <image:title>Iron ICP Standard, 10,000 ppm Fe in 5% HNO? - PFE10KN-100</image:title>
      <image:caption>Iron ICP Standard, 10,000 ppm Fe in 5% HNO? - PFE10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/aluminum-icp-standard-10000-ppm-al-in-5-hno-pal10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_573a53c5-a47a-4bb3-8b01-1286abed5979.png?v=1776330110</image:loc>
      <image:title>Aluminum ICP Standard, 10,000 ppm Al in 5% HNO? - PAL10KN-100</image:title>
      <image:caption>Aluminum ICP Standard, 10,000 ppm Al in 5% HNO? - PAL10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-icp-standard-1000-ppm-cu-in-3-hno-pcu1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ec075a6c-b885-4d5c-996b-ddc428e1dd66.png?v=1776330110</image:loc>
      <image:title>Copper ICP Standard, 1000 ppm Cu in 3% HNO? - PCU1KN-100</image:title>
      <image:caption>Copper ICP Standard, 1000 ppm Cu in 3% HNO? - PCU1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sulfur-standard-100-ppm-s-in-2-hno-rp33100s-1a</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_a07c8fc9-0c13-403d-8d57-d4313aa4dbd0.png?v=1776330112</image:loc>
      <image:title>Sulfur Standard, 100 ppm S in 2% HNO? - RP33100S-1A</image:title>
      <image:caption>Sulfur Standard, 100 ppm S in 2% HNO? - RP33100S-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-icp-standard-1000-ppm-na-in-3-hno-pna1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c0febd85-8096-4d9f-ba56-594b65118fc0.png?v=1776330115</image:loc>
      <image:title>Sodium ICP Standard, 1000 ppm Na in 3% HNO? - PNA1KN-100</image:title>
      <image:caption>Sodium ICP Standard, 1000 ppm Na in 3% HNO? - PNA1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/iron-icp-standard-1000-ppm-fe-in-3-hno-pfe1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4b8ba18a-14c3-4432-8728-538b6258e9bc.png?v=1776330115</image:loc>
      <image:title>Iron ICP Standard, 1000 ppm Fe in 3% HNO? - PFE1KN-100</image:title>
      <image:caption>Iron ICP Standard, 1000 ppm Fe in 3% HNO? - PFE1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/gadolinium-icp-standard-1000-ppm-gd-in-3-hno-pgd1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b4237e73-e078-48bb-ba59-a5b0480302ad.png?v=1776330111</image:loc>
      <image:title>Gadolinium ICP Standard, 1000 ppm Gd in 3% HNO? - PGD1KN-500</image:title>
      <image:caption>Gadolinium ICP Standard, 1000 ppm Gd in 3% HNO? - PGD1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/aluminum-icp-standard-10000-ppm-al-in-5-hno-pal10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_82af61ea-6f37-49d0-b692-0088bdf76a81.png?v=1776330113</image:loc>
      <image:title>Aluminum ICP Standard, 10,000 ppm Al in 5% HNO? - PAL10KN-50</image:title>
      <image:caption>Aluminum ICP Standard, 10,000 ppm Al in 5% HNO? - PAL10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/gallium-icp-standard-10000-ppm-ga-in-5-hno-pga10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8a185d63-c27c-440b-96ae-66cb6ba6fd1f.png?v=1776330113</image:loc>
      <image:title>Gallium ICP Standard, 10,000 ppm Ga in 5% HNO? - PGA10KN-50</image:title>
      <image:caption>Gallium ICP Standard, 10,000 ppm Ga in 5% HNO? - PGA10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/aluminum-icp-standard-10000-ppm-al-in-5-hcl-pal10kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2d41a37f-98a0-48c0-b2fc-f75ae377b7ba.png?v=1776330113</image:loc>
      <image:title>Aluminum ICP Standard, 10,000 ppm Al in 5% HCl - PAL10KH-500</image:title>
      <image:caption>Aluminum ICP Standard, 10,000 ppm Al in 5% HCl - PAL10KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-100-ppm-agalasbabecacdcocrcufekmgmnmonanipbsbsesnsrtitlvzn-rpmx101n-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8df5b852-9b8a-4ed2-8a29-708d809bedbe.png?v=1776330113</image:loc>
      <image:title>Mixed ICP Standard 100 ppm Ag,Al,As,Ba,Be,Ca,Cd,Co,Cr,Cu,Fe,K,Mg,Mn,Mo,Na,Ni,Pb,Sb,Se,Sn,Sr,Ti,Tl,V,Zn - RPMX101N-100N</image:title>
      <image:caption>Mixed ICP Standard 100 ppm Ag,Al,As,Ba,Be,Ca,Cd,Co,Cr,Cu,Fe,K,Mg,Mn,Mo,Na,Ni,Pb,Sb,Se,Sn,Sr,Ti,Tl,V,Zn - RPMX101N-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/iron-icp-standard-1000-ppm-fe-in-3-hno-pfe1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a98c1768-928e-4011-92d3-55de7b30adf1.png?v=1776330113</image:loc>
      <image:title>Iron ICP Standard, 1000 ppm Fe in 3% HNO? - PFE1KN-500</image:title>
      <image:caption>Iron ICP Standard, 1000 ppm Fe in 3% HNO? - PFE1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-300-ppm-camgbasrk-15-ppm-fesi-3-ppm-mn-075-ppm-znpb-rpmx099n-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4bf5bb88-e020-4b8c-8f25-c65eacec5ec9.png?v=1776330112</image:loc>
      <image:title>Mixed ICP Standard 300 ppm Ca,Mg,Ba,Sr,K; 15 ppm Fe,Si; 3 ppm Mn; 0.75 ppm Zn,Pb - RPMX099N-1N</image:title>
      <image:caption>Mixed ICP Standard 300 ppm Ca,Mg,Ba,Sr,K; 15 ppm Fe,Si; 3 ppm Mn; 0.75 ppm Zn,Pb - RPMX099N-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silver-icp-standard-10000-ppm-ag-in-5-hno-pag10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5a89e0a0-2e95-47b9-9d16-205e98330842.png?v=1776330113</image:loc>
      <image:title>Silver ICP Standard, 10,000 ppm Ag in 5% HNO? - PAG10KN-50</image:title>
      <image:caption>Silver ICP Standard, 10,000 ppm Ag in 5% HNO? - PAG10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/antimony-icp-standard-10000-ppm-sb-in-20-hcl-psb10kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2005122b-432a-42fc-ab08-077bfe35da6a.png?v=1776330113</image:loc>
      <image:title>Antimony ICP Standard, 10,000 ppm Sb in 20% HCl - PSB10KH-500</image:title>
      <image:caption>Antimony ICP Standard, 10,000 ppm Sb in 20% HCl - PSB10KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-icp-standard-1000-ppm-na-in-3-hno-pna1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a9a3c260-5901-4561-bf02-28d0a97fe314.png?v=1776330112</image:loc>
      <image:title>Sodium ICP Standard, 1000 ppm Na in 3% HNO? - PNA1KN-500</image:title>
      <image:caption>Sodium ICP Standard, 1000 ppm Na in 3% HNO? - PNA1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/icp-mixed-standard-50ppm-cacufemnzn-and-500ppm-kp-in-5-hno3-rpmx128n-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_cc932936-f98a-4ec6-ba5f-18f29df8da83.png?v=1776330112</image:loc>
      <image:title>ICP Mixed Standard 50ppm Ca,Cu,Fe,Mn,Zn and 500ppm K,P in 5% HNO3 - RPMX128N-500N</image:title>
      <image:caption>ICP Mixed Standard 50ppm Ca,Cu,Fe,Mn,Zn and 500ppm K,P in 5% HNO3 - RPMX128N-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-1a-icp-rmxcl1a-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500b_e3613a1f-346e-4d9a-86db-4d9b5ba90c06.png?v=1776330113</image:loc>
      <image:title>Mixed Calibration Standard 1A, ICP - RMXCL1A-500</image:title>
      <image:caption>Mixed Calibration Standard 1A, ICP - RMXCL1A-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/iron-icp-standard-10000-ppm-fe-in-5-hno-pfe10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_abcd2176-0c41-4bb2-9cc0-e873f83932cc.png?v=1776330113</image:loc>
      <image:title>Iron ICP Standard, 10,000 ppm Fe in 5% HNO? - PFE10KN-500</image:title>
      <image:caption>Iron ICP Standard, 10,000 ppm Fe in 5% HNO? - PFE10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/selenium-icp-standard-10000-ppm-se-in-5-hno-pse10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_679476e5-0146-4de5-a4c0-72824c4ce16a.png?v=1776330113</image:loc>
      <image:title>Selenium ICP Standard, 10,000 ppm Se in 5% HNO? - PSE10KN-500</image:title>
      <image:caption>Selenium ICP Standard, 10,000 ppm Se in 5% HNO? - PSE10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silicon-icp-standard-10000-ppm-si-in-5-hno-psi10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8ff116d4-c386-45de-8e63-a1a264112bc7.png?v=1776330115</image:loc>
      <image:title>Silicon ICP Standard, 10,000 ppm Si in 5% HNO? - PSI10KN-500</image:title>
      <image:caption>Silicon ICP Standard, 10,000 ppm Si in 5% HNO? - PSI10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tin-icp-standard-10000-ppm-sn-in-20-hcl-psn10kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_087747f3-e91a-45b6-b83b-68aa02ab1e1a.png?v=1776330114</image:loc>
      <image:title>Tin ICP Standard, 10,000 ppm Sn in 20% HCl - PSN10KH-500</image:title>
      <image:caption>Tin ICP Standard, 10,000 ppm Sn in 20% HCl - PSN10KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/gadolinium-icp-standard-1000-ppm-gd-in-3-hno-pgd1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_cafc6410-630d-4f42-a807-231ff1a7d847.png?v=1776330114</image:loc>
      <image:title>Gadolinium ICP Standard, 1000 ppm Gd in 3% HNO? - PGD1KN-100</image:title>
      <image:caption>Gadolinium ICP Standard, 1000 ppm Gd in 3% HNO? - PGD1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/acid-blank-5-vv-hydrochloric-acid-phacid5-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c40a0591-216e-44c2-87f1-56f19c41a6b1.png?v=1776330115</image:loc>
      <image:title>Acid Blank, 5% (v/v) Hydrochloric Acid - PHACID5-500</image:title>
      <image:caption>Acid Blank, 5% (v/v) Hydrochloric Acid - PHACID5-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/arsenic-icp-standard-1000-ppm-as-in-3-hno-pas1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_26b70e8c-b449-4bed-929d-2d47c0c624dc.png?v=1776330113</image:loc>
      <image:title>Arsenic ICP Standard, 1000 ppm As in 3% HNO? - PAS1KN-100</image:title>
      <image:caption>Arsenic ICP Standard, 1000 ppm As in 3% HNO? - PAS1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silicon-icp-standard-1000-ppm-si-in-3-hno-psi1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_964eacd0-998b-4f9e-8fc4-c97cf9985311.png?v=1776330117</image:loc>
      <image:title>Silicon ICP Standard, 1000 ppm Si in 3% HNO? - PSI1KN-100</image:title>
      <image:caption>Silicon ICP Standard, 1000 ppm Si in 3% HNO? - PSI1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silicon-icp-standard-1000-ppm-si-in-hotr-hf-psi1kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d9806c60-873e-423d-8461-87e188471484.png?v=1776330112</image:loc>
      <image:title>Silicon ICP Standard, 1000 ppm Si in H?O/tr HF - PSI1KW-500</image:title>
      <image:caption>Silicon ICP Standard, 1000 ppm Si in H?O/tr HF - PSI1KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-50ppm-each-al-cr-cu-fe-ni-w-rpmx125n-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a63fae03-1338-4fcb-9288-c3d093a77cab.png?v=1776330115</image:loc>
      <image:title>Mixed ICP Standard 50ppm each Al, Cr, Cu, Fe, Ni, W - RPMX125N-1N</image:title>
      <image:caption>Mixed ICP Standard 50ppm each Al, Cr, Cu, Fe, Ni, W - RPMX125N-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/antimony-icp-standard-10000-ppm-sb-in-hotartaric-acidtr-hno-psb10kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_47027851-aafa-4f7c-9614-89d9b1a73be1.png?v=1776330113</image:loc>
      <image:title>Antimony ICP Standard, 10,000 ppm Sb in H?O/Tartaric Acid/tr HNO? - PSB10KW-100</image:title>
      <image:caption>Antimony ICP Standard, 10,000 ppm Sb in H?O/Tartaric Acid/tr HNO? - PSB10KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tin-icp-standard-1000-ppm-sn-in-10-hcl-psn1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_555289d3-58f9-4d81-98b8-308c0a1bcb1e.png?v=1776330115</image:loc>
      <image:title>Tin ICP Standard, 1000 ppm Sn in 10% HCl - PSN1KH-100</image:title>
      <image:caption>Tin ICP Standard, 1000 ppm Sn in 10% HCl - PSN1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/germanium-icp-standard-1000-ppm-ge-in-hotr-hf-pge1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c4351909-dc35-437c-bb2f-afd4e539747e.png?v=1776330116</image:loc>
      <image:title>Germanium ICP Standard, 1000 ppm Ge in H?O/tr HF - PGE1KW-100</image:title>
      <image:caption>Germanium ICP Standard, 1000 ppm Ge in H?O/tr HF - PGE1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/gallium-icp-standard-10000-ppm-ga-in-5-hno-pga10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_42fc4290-c8cb-4040-a783-b5b0dae36e41.png?v=1776330116</image:loc>
      <image:title>Gallium ICP Standard, 10,000 ppm Ga in 5% HNO? - PGA10KN-100</image:title>
      <image:caption>Gallium ICP Standard, 10,000 ppm Ga in 5% HNO? - PGA10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silver-icp-standard-1000-ppm-ag-in-3-hno-pag1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500b_e26232c0-b5f1-410f-9691-767bb2647c88.png?v=1776330116</image:loc>
      <image:title>Silver ICP Standard, 1000 ppm Ag in 3% HNO? - PAG1KN-500</image:title>
      <image:caption>Silver ICP Standard, 1000 ppm Ag in 3% HNO? - PAG1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/aluminum-icp-standard-1000-ppm-al-in-3-hcl-pal1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_878b5c2d-e247-44c1-b1b3-863fbfe06013.png?v=1776330115</image:loc>
      <image:title>Aluminum ICP Standard, 1,000 ppm Al in 3% HCl - PAL1KH-100</image:title>
      <image:caption>Aluminum ICP Standard, 1,000 ppm Al in 3% HCl - PAL1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/multichem-18-standard-in-7-nitric-acid-rmulti18-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4f47b067-e9a1-43f6-90ea-482c7cb3937c.png?v=1776330116</image:loc>
      <image:title>Multichem-18 Standard in 7% Nitric Acid - RMULTI18-1N</image:title>
      <image:caption>Multichem-18 Standard in 7% Nitric Acid - RMULTI18-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-icp-standard-100-ppm-na-in-dilute-hno-rpna01kn-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_00803ac7-bbcc-4a20-b7a9-af46d7a5eb71.png?v=1776330120</image:loc>
      <image:title>Sodium ICP Standard, 100 ppm Na in dilute HNO? - RPNA01KN-100N</image:title>
      <image:caption>Sodium ICP Standard, 100 ppm Na in dilute HNO? - RPNA01KN-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/aluminum-icp-standard-1000-ppm-al-in-3-hno-pal1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5b0514ec-9ab1-4c06-a6e3-a37cb579e7fd.png?v=1776330116</image:loc>
      <image:title>Aluminum ICP Standard, 1000 ppm Al in 3% HNO? - PAL1KN-500</image:title>
      <image:caption>Aluminum ICP Standard, 1000 ppm Al in 3% HNO? - PAL1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silver-icp-standard-10000-ppm-ag-in-5-hno-pag10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_64327af0-22d5-43e4-9a48-0d7c8b39294f.png?v=1776330118</image:loc>
      <image:title>Silver ICP Standard, 10,000 ppm Ag in 5% HNO? - PAG10KN-100</image:title>
      <image:caption>Silver ICP Standard, 10,000 ppm Ag in 5% HNO? - PAG10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mercury-icp-standard-1000-ppm-hg-in-3-hno-phg1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f6802837-a7e9-46cf-8e67-5e9a9a084368.png?v=1776330121</image:loc>
      <image:title>Mercury ICP Standard, 1000 ppm Hg in 3% HNO? - PHG1KN-100</image:title>
      <image:caption>Mercury ICP Standard, 1000 ppm Hg in 3% HNO? - PHG1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/germanium-icp-standard-10000-ppm-ge-in-hotr-hf-pge10kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_50062f18-af79-43d7-924d-630154bb9d68.png?v=1776330116</image:loc>
      <image:title>Germanium ICP Standard, 10,000 ppm Ge in H?O/tr HF - PGE10KW-100</image:title>
      <image:caption>Germanium ICP Standard, 10,000 ppm Ge in H?O/tr HF - PGE10KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silicon-icp-standard-1000-ppm-si-in-hotr-hf-psi1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_da05d9e2-5c1f-4e36-92f8-7b0ef2c3030c.png?v=1776330119</image:loc>
      <image:title>Silicon ICP Standard, 1000 ppm Si in H?O/tr HF - PSI1KW-100</image:title>
      <image:caption>Silicon ICP Standard, 1000 ppm Si in H?O/tr HF - PSI1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/gold-icp-standard-1000-ppm-au-in-3-hcl-pau1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_07aa9a17-cdc5-4171-bbfe-242ae4719ddc.png?v=1776330120</image:loc>
      <image:title>Gold ICP Standard, 1000 ppm Au in 3% HCl - PAU1KH-100</image:title>
      <image:caption>Gold ICP Standard, 1000 ppm Au in 3% HCl - PAU1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-icp-standard-10000-ppm-na-in-5-hcl-pna10kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_02a7c48c-78a3-4902-a190-3bf0696bb0d5.png?v=1776330120</image:loc>
      <image:title>Sodium ICP Standard, 10,000 ppm Na in 5% HCl - PNA10KH-500</image:title>
      <image:caption>Sodium ICP Standard, 10,000 ppm Na in 5% HCl - PNA10KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-10ppm-each-al-cr-cu-fe-ni-w-rpmx124n-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_741bc013-a5ac-42a7-888c-7bdcf52e09fb.png?v=1776330121</image:loc>
      <image:title>Mixed ICP Standard 10ppm each Al, Cr, Cu, Fe, Ni, W - RPMX124N-1N</image:title>
      <image:caption>Mixed ICP Standard 10ppm each Al, Cr, Cu, Fe, Ni, W - RPMX124N-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/selenium-icp-standard-10000-ppm-se-in-5-hno-pse10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_664d2ec7-ef44-470a-8a83-8eac42bbcc2f.png?v=1776330118</image:loc>
      <image:title>Selenium ICP Standard, 10,000 ppm Se in 5% HNO? - PSE10KN-100</image:title>
      <image:caption>Selenium ICP Standard, 10,000 ppm Se in 5% HNO? - PSE10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/goldcopper-icp-standard-8-ppm-au-cu-rpaucu08-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3cc36b05-4b5a-46ba-9e78-d30f7d886530.png?v=1776330122</image:loc>
      <image:title>Gold/Copper ICP Standard, 8 ppm AU, Cu - RPAUCU08-500N</image:title>
      <image:caption>Gold/Copper ICP Standard, 8 ppm AU, Cu - RPAUCU08-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silicon-icp-standard-1000-ppm-si-in-3-hno-psi1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ad738771-0bcb-404c-b4ec-25a774c567a4.png?v=1776330120</image:loc>
      <image:title>Silicon ICP Standard, 1000 ppm Si in 3% HNO? - PSI1KN-500</image:title>
      <image:caption>Silicon ICP Standard, 1000 ppm Si in 3% HNO? - PSI1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/arsenic-icp-standard-10000-ppm-as-in-5-hno-pas10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c0326339-51d1-45ab-a202-fa85f36aea7e.png?v=1776330120</image:loc>
      <image:title>Arsenic ICP Standard, 10,000 ppm As in 5% HNO? - PAS10KN-50</image:title>
      <image:caption>Arsenic ICP Standard, 10,000 ppm As in 5% HNO? - PAS10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/niobium-icp-standard-10000-ppm-nb-in-hotr-hf-pnb10kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_bbe37393-d919-4d25-85cc-eabd88c62d9a.png?v=1776330119</image:loc>
      <image:title>Niobium ICP Standard, 10,000 ppm Nb in H?O/tr HF - PNB10KW-100</image:title>
      <image:caption>Niobium ICP Standard, 10,000 ppm Nb in H?O/tr HF - PNB10KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-icp-standard-500-ppm-ca-k-mg-ns-s-si-200-ppm-al-rpmx200n-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_bf82f983-80a9-4a0e-a27c-9a94ebf90bd6.png?v=1776330121</image:loc>
      <image:title>Mixed ICP Standard, 500 ppm Ca, K, Mg, Ns, S, Si; 200 ppm Al - RPMX200N-100N</image:title>
      <image:caption>Mixed ICP Standard, 500 ppm Ca, K, Mg, Ns, S, Si; 200 ppm Al - RPMX200N-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-icp-standard-10000-ppm-na-in-3-hno-pna10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f203cbf8-12d2-4b01-9fca-e48828f3d041.png?v=1776330121</image:loc>
      <image:title>Sodium ICP Standard, 10,000 ppm Na in 3% HNO? - PNA10KN-500</image:title>
      <image:caption>Sodium ICP Standard, 10,000 ppm Na in 3% HNO? - PNA10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tin-icp-standard-10000-ppm-sn-in-5-hno-psn10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_05ac3bc1-b7d1-4b8e-9751-1907b6424abe.png?v=1776330118</image:loc>
      <image:title>Tin ICP Standard, 10,000 ppm Sn in 5% HNO? - PSN10KN-50</image:title>
      <image:caption>Tin ICP Standard, 10,000 ppm Sn in 5% HNO? - PSN10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silicon-icp-standard-10000-ppm-si-in-5-hno-psi10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_554d3ee8-2628-4ddc-b020-eb5ae1fc8590.png?v=1776330118</image:loc>
      <image:title>Silicon ICP Standard, 10,000 ppm Si in 5% HNO? - PSI10KN-100</image:title>
      <image:caption>Silicon ICP Standard, 10,000 ppm Si in 5% HNO? - PSI10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tin-icp-standard-1000-ppm-sn-in-3-hno-psn1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f8875be0-969e-41a8-ac50-0dcd3614a754.png?v=1776330119</image:loc>
      <image:title>Tin ICP Standard, 1000 ppm Sn in 3% HNO? - PSN1KN-500</image:title>
      <image:caption>Tin ICP Standard, 1000 ppm Sn in 3% HNO? - PSN1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/indium-icp-standard-1000-ppm-in-in-3-hno-pin1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b7a7401c-a291-4eb1-a6a9-3704b0c46057.png?v=1776330118</image:loc>
      <image:title>Indium ICP Standard, 1000 ppm In in 3% HNO? - PIN1KN-100</image:title>
      <image:caption>Indium ICP Standard, 1000 ppm In in 3% HNO? - PIN1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hafnium-icp-standard-1000-ppm-hf-in-3-hno-phf1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_750fd988-f9bf-4aba-8f41-1eb6e0492b39.png?v=1776330121</image:loc>
      <image:title>Hafnium ICP Standard, 1000 ppm Hf in 3% HNO? - PHF1KN-100</image:title>
      <image:caption>Hafnium ICP Standard, 1000 ppm Hf in 3% HNO? - PHF1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/samarium-icp-standard-1000-ppm-sm-in-3-hno-psm1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c128e465-972a-47bd-91bb-6891c03a3db9.png?v=1776330121</image:loc>
      <image:title>Samarium ICP Standard, 1000 ppm Sm in 3% HNO? - PSM1KN-100</image:title>
      <image:caption>Samarium ICP Standard, 1000 ppm Sm in 3% HNO? - PSM1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silver-icp-standard-1000-ppm-ag-in-3-hno-pag1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_be9f0b30-3928-4643-9e1c-9ed98b9f491c.png?v=1776330122</image:loc>
      <image:title>Silver ICP Standard, 1000 ppm Ag in 3% HNO? - PAG1KN-100</image:title>
      <image:caption>Silver ICP Standard, 1000 ppm Ag in 3% HNO? - PAG1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tin-icp-standard-10000-ppm-sn-in-20-hcl-psn10kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_71a007fb-8707-440a-abd1-9c4268f24329.png?v=1776330119</image:loc>
      <image:title>Tin ICP Standard, 10,000 ppm Sn in 20% HCl - PSN10KH-100</image:title>
      <image:caption>Tin ICP Standard, 10,000 ppm Sn in 20% HCl - PSN10KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sulfur-icp-standard-1000-ppm-s-in-ho-ps1kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4c706ed9-99e3-4de5-b1db-232fb61a46ac.png?v=1776330121</image:loc>
      <image:title>Sulfur ICP Standard, 1000 ppm S in H?O - PS1KW-500</image:title>
      <image:caption>Sulfur ICP Standard, 1000 ppm S in H?O - PS1KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-25-ppm-in-hno3-rpni02n0-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_548c2633-4204-40f0-964d-5730beba6013.png?v=1776330120</image:loc>
      <image:title>Nickel ICP, 2.5 ppm in HNO3 - RPNI02N0-1N</image:title>
      <image:caption>Nickel ICP, 2.5 ppm in HNO3 - RPNI02N0-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-icp-standard-1000-ppm-na-in-3-hcl-pna1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c93aa5ba-5aa6-4914-8759-2224ad18f2d7.png?v=1776330119</image:loc>
      <image:title>Sodium ICP Standard, 1000 ppm Na in 3% HCl - PNA1KH-500</image:title>
      <image:caption>Sodium ICP Standard, 1000 ppm Na in 3% HCl - PNA1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/holmium-icp-standard-1000-ppm-ho-in-3-hno-pho1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_aa6c7f2f-9e5d-42f7-8ef0-fd592c00f37e.png?v=1776330120</image:loc>
      <image:title>Holmium ICP Standard, 1000 ppm Ho in 3% HNO? - PHO1KN-100</image:title>
      <image:caption>Holmium ICP Standard, 1000 ppm Ho in 3% HNO? - PHO1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-icp-standard-10000-ppm-na-in-3-hno-pna10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_91150a80-8aa8-4242-a8cd-981a101e9374.png?v=1776330122</image:loc>
      <image:title>Sodium ICP Standard, 10,000 ppm Na in 3% HNO? - PNA10KN-100</image:title>
      <image:caption>Sodium ICP Standard, 10,000 ppm Na in 3% HNO? - PNA10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/selenium-icp-standard-1000-ppm-se-in-3-hno-pse1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5e1c6d94-58e4-4c18-a8a2-0828ed58f6b1.png?v=1776330124</image:loc>
      <image:title>Selenium ICP Standard, 1000 ppm Se in 3% HNO? - PSE1KN-500</image:title>
      <image:caption>Selenium ICP Standard, 1000 ppm Se in 3% HNO? - PSE1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/niobium-icp-standard-1000-ppm-nb-in-hotr-hf-pnb1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_87b7613f-c311-43ab-b7fd-07ae0fff2ddb.png?v=1776330122</image:loc>
      <image:title>Niobium ICP Standard, 1000 ppm Nb in H?O/tr HF - PNB1KW-100</image:title>
      <image:caption>Niobium ICP Standard, 1000 ppm Nb in H?O/tr HF - PNB1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-icp-standard-10000-ppm-cu-in-5-hno-pcu10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_bc750913-349f-4d79-a4e9-08b72812e33d.png?v=1776330122</image:loc>
      <image:title>Copper ICP Standard, 10,000 ppm Cu in 5% HNO? - PCU10KN-50</image:title>
      <image:caption>Copper ICP Standard, 10,000 ppm Cu in 5% HNO? - PCU10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-icp-standard-10000-ppm-k-in-5-hcl-pk10kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0f0a6c9a-e4d1-4e6b-9b12-1b7d21f3fcf8.png?v=1776330122</image:loc>
      <image:title>Potassium ICP Standard, 10,000 ppm K in 5% HCl - PK10KH-500</image:title>
      <image:caption>Potassium ICP Standard, 10,000 ppm K in 5% HCl - PK10KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tantalum-icp-standard-1000-ppm-ta-in-hotr-hf-pta1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d3a265c2-bbb5-418b-8e37-da8c352dc711.png?v=1776330122</image:loc>
      <image:title>Tantalum ICP Standard, 1000 ppm Ta in H?O/tr HF - PTA1KW-100</image:title>
      <image:caption>Tantalum ICP Standard, 1000 ppm Ta in H?O/tr HF - PTA1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mixed-calibration-standard-1-icp-rmxcl1-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f9da3cc3-2f54-43ae-b411-e2b2e3dc993b.png?v=1776330123</image:loc>
      <image:title>Mixed Calibration Standard 1, ICP - RMXCL1-100</image:title>
      <image:caption>Mixed Calibration Standard 1, ICP - RMXCL1-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tantalum-icp-standard-10000-ppm-ta-in-2-hf-pta10kw-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0a9e938d-e5e2-4510-8371-7d5e4e4495d1.png?v=1776330122</image:loc>
      <image:title>Tantalum ICP Standard, 10,000 ppm Ta in 2% HF - PTA10KW-50</image:title>
      <image:caption>Tantalum ICP Standard, 10,000 ppm Ta in 2% HF - PTA10KW-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/goldcopper-icp-standard-10-ppm-au-cu-rpaucu10-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f2acf559-f1a9-418e-9b0a-090bbb9a7993.png?v=1776330121</image:loc>
      <image:title>Gold/Copper ICP Standard, 10 ppm Au, Cu - RPAUCU10-500N</image:title>
      <image:caption>Gold/Copper ICP Standard, 10 ppm Au, Cu - RPAUCU10-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/aluminum-icp-standard-1000-ppm-al-in-3-hcl-pal1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_290279a7-3f9f-426c-a25a-c093601cfea2.png?v=1776330123</image:loc>
      <image:title>Aluminum ICP Standard, 1,000 ppm Al in 3% HCl - PAL1KH-500</image:title>
      <image:caption>Aluminum ICP Standard, 1,000 ppm Al in 3% HCl - PAL1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/strontium-icp-standard-1000-ppm-sr-in-3-hno-psr1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c582e422-a619-4d34-92b1-58525741374a.png?v=1776330124</image:loc>
      <image:title>Strontium ICP Standard, 1000 ppm Sr in 3% HNO? - PSR1KN-500</image:title>
      <image:caption>Strontium ICP Standard, 1000 ppm Sr in 3% HNO? - PSR1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tin-icp-standard-1000-ppm-sn-in-10-hcl-psn1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_300d664c-84de-4495-941f-5ed8d5255276.png?v=1776330122</image:loc>
      <image:title>Tin ICP Standard, 1000 ppm Sn in 10% HCl - PSN1KH-500</image:title>
      <image:caption>Tin ICP Standard, 1000 ppm Sn in 10% HCl - PSN1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tellurium-icp-standard-10000-ppm-te-in-10-hno-pte10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5b8d6c16-0eb5-4754-8374-205a700b10cb.png?v=1776330123</image:loc>
      <image:title>Tellurium ICP Standard, 10,000 ppm Te in 10% HNO? - PTE10KN-500</image:title>
      <image:caption>Tellurium ICP Standard, 10,000 ppm Te in 10% HNO? - PTE10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/boron-icp-standard-100-ppm-b-in-ho-rpb100w0-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_24d3685f-00c1-4348-9d72-6a185d4fba02.png?v=1776330124</image:loc>
      <image:title>Boron ICP Standard, 100 ppm B in H?O - RPB100W0-100N</image:title>
      <image:caption>Boron ICP Standard, 100 ppm B in H?O - RPB100W0-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/indium-icp-standard-10000-ppm-in-in-5-hno-pin10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1078d14e-901e-406b-90a6-126afe8644cc.png?v=1776330122</image:loc>
      <image:title>Indium ICP Standard, 10,000 ppm In in 5% HNO? - PIN10KN-50</image:title>
      <image:caption>Indium ICP Standard, 10,000 ppm In in 5% HNO? - PIN10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-standard-100-ppm-ni-in-dilute-hno-rpni01kn-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_58e9b626-b3e7-48aa-8f43-a298e043c0d0.png?v=1776330124</image:loc>
      <image:title>Nickel ICP Standard, 100 ppm Ni in dilute HNO? - RPNI01KN-100N</image:title>
      <image:caption>Nickel ICP Standard, 100 ppm Ni in dilute HNO? - RPNI01KN-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-icp-standard-100-ppm-k-in-dilute-hno-rpk01kn0-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_bc09aacb-324a-4ab2-a31f-d62ccec1ecab.png?v=1776330123</image:loc>
      <image:title>Potassium ICP Standard, 100 ppm K in dilute HNO? - RPK01KN0-100N</image:title>
      <image:caption>Potassium ICP Standard, 100 ppm K in dilute HNO? - RPK01KN0-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-standard-1000-ppm-ni-in-3-hno-pni1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_18176adf-ef5d-4998-9e4b-ada2ca59bec7.png?v=1776330125</image:loc>
      <image:title>Nickel ICP Standard, 1000 ppm Ni in 3% HNO? - PNI1KN-100</image:title>
      <image:caption>Nickel ICP Standard, 1000 ppm Ni in 3% HNO? - PNI1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/gold-icp-standard-1000-ppm-au-in-3-hcl-pau1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_0710a295-f488-4891-98c3-1d67c6f6faf8.png?v=1776330124</image:loc>
      <image:title>Gold ICP Standard, 1000 ppm Au in 3% HCl - PAU1KH-500</image:title>
      <image:caption>Gold ICP Standard, 1000 ppm Au in 3% HCl - PAU1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silicon-icp-standard-10000-ppm-si-in-hotr-hf-psi10kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4ec42b27-86a4-457b-9c11-54c48ac09852.png?v=1776330123</image:loc>
      <image:title>Silicon ICP Standard, 10,000 ppm Si in H?O/tr HF - PSI10KW-100</image:title>
      <image:caption>Silicon ICP Standard, 10,000 ppm Si in H?O/tr HF - PSI10KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lanthanum-icp-standard-1000-ppm-la-in-3-hno-pla1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d4687432-c9a1-47a0-bd34-9f62a4cfcd64.png?v=1776330125</image:loc>
      <image:title>Lanthanum ICP Standard, 1000 ppm La in 3% HNO? - PLA1KN-100</image:title>
      <image:caption>Lanthanum ICP Standard, 1000 ppm La in 3% HNO? - PLA1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/gold-icp-standard-10000-ppm-au-in-5-hcl-pau10kh-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1f1b8423-d734-4556-b67b-28fcc9a1b51d.png?v=1776330125</image:loc>
      <image:title>Gold ICP Standard, 10,000 ppm Au in 5% HCl - PAU10KH-50</image:title>
      <image:caption>Gold ICP Standard, 10,000 ppm Au in 5% HCl - PAU10KH-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/gold-icp-standard-10000-ppm-au-in-5-hcl-pau10kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_68f82191-3ec3-4868-800a-fa5db0c4666b.png?v=1776330124</image:loc>
      <image:title>Gold ICP Standard, 10,000 ppm Au in 5% HCl - PAU10KH-100</image:title>
      <image:caption>Gold ICP Standard, 10,000 ppm Au in 5% HCl - PAU10KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/aluminum-icp-standard-10000-ppm-al-in-5-hcl-pal10kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a695d1f4-c07a-4117-80e9-da2e5dba327e.png?v=1776330127</image:loc>
      <image:title>Aluminum ICP Standard, 10,000 ppm Al in 5% HCl - PAL10KH-100</image:title>
      <image:caption>Aluminum ICP Standard, 10,000 ppm Al in 5% HCl - PAL10KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-5-ppm-in-hno3-rpni05n0-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5ed59afa-a515-4431-88b5-3b57fcb4bc80.png?v=1776330124</image:loc>
      <image:title>Nickel ICP, 5 ppm in HNO3 - RPNI05N0-1N</image:title>
      <image:caption>Nickel ICP, 5 ppm in HNO3 - RPNI05N0-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/antimony-icp-standard-1000-ppm-sb-in-20-hcl-psb1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1463afde-8e80-4d1d-b1a4-cc346240e099.png?v=1776330125</image:loc>
      <image:title>Antimony ICP Standard, 1000 ppm Sb in 20% HCl - PSB1KH-500</image:title>
      <image:caption>Antimony ICP Standard, 1000 ppm Sb in 20% HCl - PSB1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/terbium-icp-standard-1000-ppm-tb-in-3-hno-ptb1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c2d8159d-0975-4acb-ad9a-83636bcba671.png?v=1776330128</image:loc>
      <image:title>Terbium ICP Standard, 1000 ppm Tb in 3% HNO? - PTB1KN-100</image:title>
      <image:caption>Terbium ICP Standard, 1000 ppm Tb in 3% HNO? - PTB1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/acid-blank-5-vv-hydrochloric-acid-phacid5-25</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_10f_757dabbd-8f27-4a62-932e-7b9b8de9874e.png?v=1776330125</image:loc>
      <image:title>Acid Blank, 5% (v/v) Hydrochloric Acid - PHACID5-2.5</image:title>
      <image:caption>Acid Blank, 5% (v/v) Hydrochloric Acid - PHACID5-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-standard-10000-ppm-ni-in-5-hno-pni10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_41d0c9f6-9d8e-4190-862c-7b96cbc46835.png?v=1776330126</image:loc>
      <image:title>Nickel ICP Standard, 10,000 ppm Ni in 5% HNO? - PNI10KN-500</image:title>
      <image:caption>Nickel ICP Standard, 10,000 ppm Ni in 5% HNO? - PNI10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tellurium-icp-standard-1000-ppm-te-in-3-hcl-pte1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ddc909e5-e9fd-4eb6-857c-61541dddbf00.png?v=1776330124</image:loc>
      <image:title>Tellurium ICP Standard, 1000 ppm Te in 3% HCl - PTE1KH-100</image:title>
      <image:caption>Tellurium ICP Standard, 1000 ppm Te in 3% HCl - PTE1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/aluminum-icp-standard-10000-ppm-al-in-5-hno-pal10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_69bfdd8b-27b7-4591-8182-2012ad210626.png?v=1776330123</image:loc>
      <image:title>Aluminum ICP Standard, 10,000 ppm Al in 5% HNO? - PAL10KN-500</image:title>
      <image:caption>Aluminum ICP Standard, 10,000 ppm Al in 5% HNO? - PAL10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/titanium-icp-standard-10000-ppm-ti-in-hotr-hf-pti10kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_eb5aa50d-5683-4a4c-bd65-9ec69c1811ed.png?v=1776330125</image:loc>
      <image:title>Titanium ICP Standard, 10,000 ppm Ti in H?O/tr HF - PTI10KW-100</image:title>
      <image:caption>Titanium ICP Standard, 10,000 ppm Ti in H?O/tr HF - PTI10KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/niobium-icp-standard-1000-ppm-nb-in-3-hno-pnb1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2903208c-5ff8-4c68-ba91-11326b2640ef.png?v=1776330125</image:loc>
      <image:title>Niobium ICP Standard, 1000 ppm Nb in 3% HNO? - PNB1KN-500</image:title>
      <image:caption>Niobium ICP Standard, 1000 ppm Nb in 3% HNO? - PNB1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tantalum-icp-standard-10000-ppm-ta-in-2-hf-pta10kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f3bfd376-a249-4544-9615-ab699af2b79a.png?v=1776330129</image:loc>
      <image:title>Tantalum ICP Standard, 10,000 ppm Ta in 2% HF - PTA10KW-100</image:title>
      <image:caption>Tantalum ICP Standard, 10,000 ppm Ta in 2% HF - PTA10KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/neodymium-icp-standard-10000-ppm-nd-in-5-hno-pnd10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5cc9ad04-74ef-41bb-a640-c4c90f065513.png?v=1776330126</image:loc>
      <image:title>Neodymium ICP Standard, 10,000 ppm Nd in 5% HNO? - PND10KN-100</image:title>
      <image:caption>Neodymium ICP Standard, 10,000 ppm Nd in 5% HNO? - PND10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/osmium-icp-standard-1000-ppm-os-in-20-hcl-pos1kh-1l</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_39568909-2c4c-4b17-8ce1-367b03516ec7.png?v=1776330127</image:loc>
      <image:title>Osmium ICP Standard, 1000 ppm Os in 20% HCl - POS1KH-1L</image:title>
      <image:caption>Osmium ICP Standard, 1000 ppm Os in 20% HCl - POS1KH-1L</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/aluminum-icp-standard-1000-ppm-al-in-3-hno-pal1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_bcd50883-a031-4f6c-aeb4-221c1c472000.png?v=1776330127</image:loc>
      <image:title>Aluminum ICP Standard, 1000 ppm Al in 3% HNO? - PAL1KN-100</image:title>
      <image:caption>Aluminum ICP Standard, 1000 ppm Al in 3% HNO? - PAL1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-standard-1000-ppm-ni-in-3-hno-pni1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0a590697-d98a-4232-ae5c-088255d99fc8.png?v=1776330128</image:loc>
      <image:title>Nickel ICP Standard, 1000 ppm Ni in 3% HNO? - PNI1KN-500</image:title>
      <image:caption>Nickel ICP Standard, 1000 ppm Ni in 3% HNO? - PNI1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-standard-10000-ppm-ni-in-5-hno-pni10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_16fef292-2957-483a-a4c2-c14602280529.png?v=1776330129</image:loc>
      <image:title>Nickel ICP Standard, 10,000 ppm Ni in 5% HNO? - PNI10KN-100</image:title>
      <image:caption>Nickel ICP Standard, 10,000 ppm Ni in 5% HNO? - PNI10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-icp-standard-1000-ppm-k-in-3-hno-pk1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_7e1374da-449c-4fff-9c52-697359a1f40e.png?v=1776330125</image:loc>
      <image:title>Potassium ICP Standard, 1000 ppm K in 3% HNO? - PK1KN-500</image:title>
      <image:caption>Potassium ICP Standard, 1000 ppm K in 3% HNO? - PK1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tellurium-icp-standard-1000-ppm-te-in-3-hno-pte1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b639eda4-db33-47c6-8889-7ec1a7ad4b19.png?v=1776330127</image:loc>
      <image:title>Tellurium ICP Standard, 1000 ppm Te in 3% HNO? - PTE1KN-100</image:title>
      <image:caption>Tellurium ICP Standard, 1000 ppm Te in 3% HNO? - PTE1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/niobium-icp-standard-10000-ppm-nb-in-5-hno-pnb10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f44e20f6-1d8f-4778-8b7b-32daff0e064a.png?v=1776330125</image:loc>
      <image:title>Niobium ICP Standard, 10,000 ppm Nb in 5% HNO? - PNB10KN-500</image:title>
      <image:caption>Niobium ICP Standard, 10,000 ppm Nb in 5% HNO? - PNB10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/strontium-icp-standard-1000-ppm-sr-in-3-hno-psr1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4b5a5138-7e4d-46dc-91d3-6f4798d57eda.png?v=1776330125</image:loc>
      <image:title>Strontium ICP Standard, 1000 ppm Sr in 3% HNO? - PSR1KN-100</image:title>
      <image:caption>Strontium ICP Standard, 1000 ppm Sr in 3% HNO? - PSR1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mercury-icp-standard-10000-ppm-hg-in-10-hno-phg10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_42782258-7c23-4ebc-8875-11dd71a0568c.png?v=1776330129</image:loc>
      <image:title>Mercury ICP Standard, 10,000 ppm Hg in 10% HNO? - PHG10KN-100</image:title>
      <image:caption>Mercury ICP Standard, 10,000 ppm Hg in 10% HNO? - PHG10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/strontium-icp-standard-10000-ppm-sr-in-5-hno-psr10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6a50eb2a-0898-401e-88fb-501829bb5015.png?v=1776330125</image:loc>
      <image:title>Strontium ICP Standard, 10,000 ppm Sr in 5% HNO? - PSR10KN-500</image:title>
      <image:caption>Strontium ICP Standard, 10,000 ppm Sr in 5% HNO? - PSR10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tin-icp-standard-1000-ppm-sn-in-3-hno-psn1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6fec8286-23c7-4c09-9b8b-1febd5bf9107.png?v=1776330126</image:loc>
      <image:title>Tin ICP Standard, 1000 ppm Sn in 3% HNO? - PSN1KN-100</image:title>
      <image:caption>Tin ICP Standard, 1000 ppm Sn in 3% HNO? - PSN1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/iridium-icp-standard-1000-ppm-ir-in-10-hcl-pir1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_76c542bc-4c41-4bff-acbc-7d2a53336967.png?v=1776330127</image:loc>
      <image:title>Iridium ICP Standard, 1000 ppm Ir in 10% HCl - PIR1KH-500</image:title>
      <image:caption>Iridium ICP Standard, 1000 ppm Ir in 10% HCl - PIR1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/osmium-icp-standard-1000-ppm-os-in-20-hcl-pos1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_68c6eb00-1a9f-45cb-ba3e-0ddd046c013e.png?v=1776330127</image:loc>
      <image:title>Osmium ICP Standard, 1000 ppm Os in 20% HCl - POS1KH-500</image:title>
      <image:caption>Osmium ICP Standard, 1000 ppm Os in 20% HCl - POS1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-25-ppm-in-hno3-rpni25n0-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_39d6bc40-a7af-4d15-9015-38714eecad38.png?v=1776330127</image:loc>
      <image:title>Nickel ICP, 25 ppm in HNO3 - RPNI25N0-1N</image:title>
      <image:caption>Nickel ICP, 25 ppm in HNO3 - RPNI25N0-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-50-ppm-in-hno3-rpni50n0-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_fc9a6a87-4071-4e41-b21e-2896d226a6cc.png?v=1776330128</image:loc>
      <image:title>Nickel ICP, 50 ppm in HNO3 - RPNI50N0-1N</image:title>
      <image:caption>Nickel ICP, 50 ppm in HNO3 - RPNI50N0-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/neodymium-icp-standard-1000-ppm-nd-in-3-hno-pnd1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2b054e9c-a02c-444e-9075-ae997f7cebf7.png?v=1776330130</image:loc>
      <image:title>Neodymium ICP Standard, 1000 ppm Nd in 3% HNO? - PND1KN-100</image:title>
      <image:caption>Neodymium ICP Standard, 1000 ppm Nd in 3% HNO? - PND1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/strontium-icp-standard-10000-ppm-sr-in-5-hno-psr10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_fec5afa3-d6c4-45aa-b8a8-3df130876b72.png?v=1776330129</image:loc>
      <image:title>Strontium ICP Standard, 10,000 ppm Sr in 5% HNO? - PSR10KN-50</image:title>
      <image:caption>Strontium ICP Standard, 10,000 ppm Sr in 5% HNO? - PSR10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tin-icp-standard-10000-ppm-sn-in-5-hno-psn10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_7b9ea91d-d29f-4117-9753-e1cd7701a3c4.png?v=1776330128</image:loc>
      <image:title>Tin ICP Standard, 10,000 ppm Sn in 5% HNO? - PSN10KN-100</image:title>
      <image:caption>Tin ICP Standard, 10,000 ppm Sn in 5% HNO? - PSN10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-icp-standard-10000-ppm-k-in-5-hno-pk10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0ceef45a-5838-4f2d-b27e-8211179b5126.png?v=1776330128</image:loc>
      <image:title>Potassium ICP Standard, 10,000 ppm K in 5% HNO? - PK10KN-50</image:title>
      <image:caption>Potassium ICP Standard, 10,000 ppm K in 5% HNO? - PK10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/titanium-icp-standard-10000-ppm-ti-in-30-hcl-pti10kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_565ff09a-a182-480f-ba63-46a12e66d759.png?v=1776330129</image:loc>
      <image:title>Titanium ICP Standard, 10,000 ppm Ti in 30% HCl - PTI10KH-500</image:title>
      <image:caption>Titanium ICP Standard, 10,000 ppm Ti in 30% HCl - PTI10KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mercury-icp-standard-10000-ppm-hg-in-10-hno-phg10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c8c3a6aa-225c-4815-9a63-d3d9280ae302.png?v=1776330128</image:loc>
      <image:title>Mercury ICP Standard, 10,000 ppm Hg in 10% HNO? - PHG10KN-500</image:title>
      <image:caption>Mercury ICP Standard, 10,000 ppm Hg in 10% HNO? - PHG10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/arsenic-icp-standard-1000-ppm-as-in-3-hcl-pas1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0fbd549f-bfb5-4aeb-905f-62480e00c547.png?v=1776330130</image:loc>
      <image:title>Arsenic ICP Standard, 1000 ppm As in 3% HCl - PAS1KH-500</image:title>
      <image:caption>Arsenic ICP Standard, 1000 ppm As in 3% HCl - PAS1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/acid-blank-5-vv-hydrochloric-acid-phacid5-1ct</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-4f_018d037c-4e03-4935-b0b2-cdee721e05a5.png?v=1776330131</image:loc>
      <image:title>Acid Blank, 5% (v/v) Hydrochloric Acid - PHACID5-1CT</image:title>
      <image:caption>Acid Blank, 5% (v/v) Hydrochloric Acid - PHACID5-1CT</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphorus-icp-standard-1000-ppm-p-in-ho-pp1kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d277e0b1-079a-4e9f-a8e8-a296e2a8924c.png?v=1776330131</image:loc>
      <image:title>Phosphorus ICP Standard, 1000 ppm P in H?O - PP1KW-500</image:title>
      <image:caption>Phosphorus ICP Standard, 1000 ppm P in H?O - PP1KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silicon-icp-standard-10000-ppm-si-in-hotr-hf-psi10kw-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_73339d26-0707-422e-8dd9-7f861122d605.png?v=1776330127</image:loc>
      <image:title>Silicon ICP Standard, 10,000 ppm Si in H?O/tr HF - PSI10KW-50</image:title>
      <image:caption>Silicon ICP Standard, 10,000 ppm Si in H?O/tr HF - PSI10KW-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/indium-icp-standard-10000-ppm-in-in-5-hno-pin10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9dd6fb82-528f-401b-aa51-8379a80c9911.png?v=1776330130</image:loc>
      <image:title>Indium ICP Standard, 10,000 ppm In in 5% HNO? - PIN10KN-500</image:title>
      <image:caption>Indium ICP Standard, 10,000 ppm In in 5% HNO? - PIN10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/thallium-icp-standard-10000-ppm-tl-in-5-hno-ptl10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_278f0f1b-bd7c-48c5-9cf1-4af2f07caf5a.png?v=1776330131</image:loc>
      <image:title>Thallium ICP Standard, 10,000 ppm Tl in 5% HNO? - PTL10KN-100</image:title>
      <image:caption>Thallium ICP Standard, 10,000 ppm Tl in 5% HNO? - PTL10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tellurium-icp-standard-1000-ppm-te-in-3-hcl-pte1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f58d058a-a796-4dce-9a41-f888c364fd3d.png?v=1776330127</image:loc>
      <image:title>Tellurium ICP Standard, 1000 ppm Te in 3% HCl - PTE1KH-500</image:title>
      <image:caption>Tellurium ICP Standard, 1000 ppm Te in 3% HCl - PTE1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/strontium-icp-standard-10000-ppm-sr-in-5-hno-psr10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_568ee239-efc5-40ad-a4a6-8339a8d35b36.png?v=1776330129</image:loc>
      <image:title>Strontium ICP Standard, 10,000 ppm Sr in 5% HNO? - PSR10KN-100</image:title>
      <image:caption>Strontium ICP Standard, 10,000 ppm Sr in 5% HNO? - PSR10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-icp-standard-10000-ppm-k-in-5-hno-pk10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d30420b7-ba69-4ad8-997d-28f193b8cc4f.png?v=1776330130</image:loc>
      <image:title>Potassium ICP Standard, 10,000 ppm K in 5% HNO? - PK10KN-500</image:title>
      <image:caption>Potassium ICP Standard, 10,000 ppm K in 5% HNO? - PK10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/titanium-icp-standard-1000-ppm-ti-in-15-hcl-pti1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0eae97f7-bcb8-4ebb-a134-c8e318dd5a29.png?v=1776330132</image:loc>
      <image:title>Titanium ICP Standard, 1000 ppm Ti in 15% HCl - PTI1KH-500</image:title>
      <image:caption>Titanium ICP Standard, 1000 ppm Ti in 15% HCl - PTI1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphorus-icp-standard-10000-ppm-p-in-ho-pp10kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_90b7df05-9296-4482-867d-9a8ac2dcd298.png?v=1776330133</image:loc>
      <image:title>Phosphorus ICP Standard, 10,000 ppm P in H?O - PP10KW-500</image:title>
      <image:caption>Phosphorus ICP Standard, 10,000 ppm P in H?O - PP10KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/mercury-icp-standard-1000-ppm-hg-in-3-hno-phg1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c5c139a6-e714-480f-aaac-4df1eb102482.png?v=1776330133</image:loc>
      <image:title>Mercury ICP Standard, 1000 ppm Hg in 3% HNO? - PHG1KN-500</image:title>
      <image:caption>Mercury ICP Standard, 1000 ppm Hg in 3% HNO? - PHG1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphorus-icp-standard-1000-ppm-p-in-ho-pp1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_309a80ad-795d-40c5-9254-f8ac628ecd0a.png?v=1776330131</image:loc>
      <image:title>Phosphorus ICP Standard, 1000 ppm P in H?O - PP1KW-100</image:title>
      <image:caption>Phosphorus ICP Standard, 1000 ppm P in H?O - PP1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/iridium-icp-standard-1000-ppm-ir-in-10-hcl-pir1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_dd77e257-5630-4c0f-be67-bee562c82833.png?v=1776330133</image:loc>
      <image:title>Iridium ICP Standard, 1000 ppm Ir in 10% HCl - PIR1KH-100</image:title>
      <image:caption>Iridium ICP Standard, 1000 ppm Ir in 10% HCl - PIR1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tellurium-icp-standard-10000-ppm-te-in-25-hcl-pte10kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6c069e24-f48a-484a-81ad-2962841cc4d5.png?v=1776330131</image:loc>
      <image:title>Tellurium ICP Standard, 10,000 ppm Te in 25% HCl - PTE10KH-100</image:title>
      <image:caption>Tellurium ICP Standard, 10,000 ppm Te in 25% HCl - PTE10KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/boron-icp-standard-100-ppm-b-in-ho-rpb100w0-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_fc1e945d-b142-43d4-8285-776185700cd2.png?v=1776330131</image:loc>
      <image:title>Boron ICP Standard, 100 ppm B in H?O - RPB100W0-500N</image:title>
      <image:caption>Boron ICP Standard, 100 ppm B in H?O - RPB100W0-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/palladium-icp-standard-1000-ppm-pd-in-3-hcl-ppd1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4f06bf7c-59ec-4352-aa93-7c3cf57dcbfe.png?v=1776330134</image:loc>
      <image:title>Palladium ICP Standard, 1000 ppm Pd in 3% HCl - PPD1KH-500</image:title>
      <image:caption>Palladium ICP Standard, 1000 ppm Pd in 3% HCl - PPD1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/praseodymium-icp-standard-10000-ppm-pr-in-5-hno-ppr10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_169da706-9777-455f-a953-89e41cff6dcd.png?v=1776330132</image:loc>
      <image:title>Praseodymium ICP Standard, 10,000 ppm Pr in 5% HNO? - PPR10KN-100</image:title>
      <image:caption>Praseodymium ICP Standard, 10,000 ppm Pr in 5% HNO? - PPR10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lanthanum-icp-standard-1000-ppm-la-in-3-hno-pla1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_56511bc0-2a5c-4086-96be-15b692666aa4.png?v=1776330133</image:loc>
      <image:title>Lanthanum ICP Standard, 1000 ppm La in 3% HNO? - PLA1KN-500</image:title>
      <image:caption>Lanthanum ICP Standard, 1000 ppm La in 3% HNO? - PLA1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lead-icp-standard-10000-ppm-pb-in-5-hno-ppb10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_001b903f-7b47-4196-8d8b-e47dc6100aeb.png?v=1776330132</image:loc>
      <image:title>Lead ICP Standard, 10,000 ppm Pb in 5% HNO? - PPB10KN-50</image:title>
      <image:caption>Lead ICP Standard, 10,000 ppm Pb in 5% HNO? - PPB10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/arsenic-icp-standard-10000-ppm-as-in-5-hno-pas10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b1ea6e27-0ccc-4d2d-ade8-a8efaab01a53.png?v=1776330132</image:loc>
      <image:title>Arsenic ICP Standard, 10,000 ppm As in 5% HNO? - PAS10KN-500</image:title>
      <image:caption>Arsenic ICP Standard, 10,000 ppm As in 5% HNO? - PAS10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-icp-standard-10000-ppm-k-in-5-hno-pk10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3af435bf-6533-45b8-b470-e68c0e469166.png?v=1776330132</image:loc>
      <image:title>Potassium ICP Standard, 10,000 ppm K in 5% HNO? - PK10KN-100</image:title>
      <image:caption>Potassium ICP Standard, 10,000 ppm K in 5% HNO? - PK10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-icp-standard-1000-ppm-k-in-3-hcl-pk1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_adf280b4-49bc-4b12-9600-a6c3f3a2afcc.png?v=1776330135</image:loc>
      <image:title>Potassium ICP Standard, 1000 ppm K in 3% HCl - PK1KH-500</image:title>
      <image:caption>Potassium ICP Standard, 1000 ppm K in 3% HCl - PK1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lithium-icp-standard-10000-ppm-li-in-5-hno-pli10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_43afae81-386b-4033-9776-bb88f5e59445.png?v=1776330136</image:loc>
      <image:title>Lithium ICP Standard, 10,000 ppm Li in 5% HNO? - PLI10KN-100</image:title>
      <image:caption>Lithium ICP Standard, 10,000 ppm Li in 5% HNO? - PLI10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphorus-icp-standard-100-ppm-p-rpp01kw0-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e734b8e7-256d-41d9-93b2-b9e74e73b956.png?v=1776330138</image:loc>
      <image:title>Phosphorus ICP Standard, 100 ppm P - RPP01KW0-100N</image:title>
      <image:caption>Phosphorus ICP Standard, 100 ppm P - RPP01KW0-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/yttrium-icp-standard-1000-ppm-y-in-3-hno-py1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_31ce87d0-1e1c-4fc2-8f33-27bc1320e742.png?v=1776330132</image:loc>
      <image:title>Yttrium ICP Standard, 1000 ppm Y in 3% HNO? - PY1KN-500</image:title>
      <image:caption>Yttrium ICP Standard, 1000 ppm Y in 3% HNO? - PY1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/titanium-icp-standard-10000-ppm-ti-in-hotr-hf-pti10kw-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_7773cfb4-a5c8-4d4a-b902-493a5890ec6c.png?v=1776330135</image:loc>
      <image:title>Titanium ICP Standard, 10,000 ppm Ti in H?O/tr HF - PTI10KW-50</image:title>
      <image:caption>Titanium ICP Standard, 10,000 ppm Ti in H?O/tr HF - PTI10KW-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-10-ppm-in-hno3-rpni10n0-1n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9f2c8d47-bd1c-4049-bc73-3f63f2825e82.png?v=1776330133</image:loc>
      <image:title>Nickel ICP, 10 ppm in HNO3 - RPNI10N0-1N</image:title>
      <image:caption>Nickel ICP, 10 ppm in HNO3 - RPNI10N0-1N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/strontium-icp-standard-10000-ppm-sr-in-10-hcl-psr10kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_02c883a6-c381-463b-9eca-9b9c34d16f80.png?v=1776330133</image:loc>
      <image:title>Strontium ICP Standard, 10,000 ppm Sr in 10% HCl - PSR10KH-100</image:title>
      <image:caption>Strontium ICP Standard, 10,000 ppm Sr in 10% HCl - PSR10KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/dioxane-acs-rsod0100-4c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4c_5ec806a3-ce4f-481d-b8c9-a988ce80dc11.png?v=1776330133</image:loc>
      <image:title>Dioxane ACS - RSOD0100-4C</image:title>
      <image:caption>Dioxane ACS - RSOD0100-4C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lithium-icp-standard-1000-ppm-li-in-3-hno-pli1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5c47a9b5-4616-41fe-a1ee-231735a6e32c.png?v=1776330135</image:loc>
      <image:title>Lithium ICP Standard, 1000 ppm Li in 3% HNO? - PLI1KN-500</image:title>
      <image:caption>Lithium ICP Standard, 1000 ppm Li in 3% HNO? - PLI1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloroform-acs-reagent-grade-rsoc0020-4c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_4c_5128d4e8-a4b1-401a-addd-980e5076e9dd.png?v=1776330132</image:loc>
      <image:title>Chloroform, ACS Reagent Grade - RSOC0020-4C</image:title>
      <image:caption>Chloroform, ACS Reagent Grade - RSOC0020-4C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/palladium-icp-standard-10000-ppm-pd-in-10-hcl-ppd10kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1fcafdf7-07db-4952-a0f8-7d2b8aaee83d.png?v=1776330135</image:loc>
      <image:title>Palladium ICP Standard, 10,000 ppm Pd in 10% HCl - PPD10KH-100</image:title>
      <image:caption>Palladium ICP Standard, 10,000 ppm Pd in 10% HCl - PPD10KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/vanadium-icp-standard-10000-ppm-v-in-5-hno-pv10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1168e5f6-4001-4a3b-8019-36fbf349dc19.png?v=1776330137</image:loc>
      <image:title>Vanadium ICP Standard, 10,000 ppm V in 5% HNO? - PV10KN-50</image:title>
      <image:caption>Vanadium ICP Standard, 10,000 ppm V in 5% HNO? - PV10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloroform-acs-reagent-grade-rsoc0020-1c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_1c_342b28e0-1a54-4c89-9957-5a3247df2662.png?v=1776330135</image:loc>
      <image:title>Chloroform, ACS Reagent Grade - RSOC0020-1C</image:title>
      <image:caption>Chloroform, ACS Reagent Grade - RSOC0020-1C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tellurium-icp-standard-10000-ppm-te-in-10-hno-pte10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_7e747e41-992c-49de-b565-f626e6e0739d.png?v=1776330134</image:loc>
      <image:title>Tellurium ICP Standard, 10,000 ppm Te in 10% HNO? - PTE10KN-100</image:title>
      <image:caption>Tellurium ICP Standard, 10,000 ppm Te in 10% HNO? - PTE10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/arsenic-icp-standard-1000-ppm-as-in-3-hno-pas1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a44a13f6-98d0-4006-8813-b589e65c1ddf.png?v=1776330136</image:loc>
      <image:title>Arsenic ICP Standard, 1000 ppm As in 3% HNO? - PAS1KN-500</image:title>
      <image:caption>Arsenic ICP Standard, 1000 ppm As in 3% HNO? - PAS1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lead-icp-standard-1000-ppm-pb-in-3-hno-ppb1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c608e4ea-7214-4558-8f78-95284988335c.png?v=1776330135</image:loc>
      <image:title>Lead ICP Standard, 1000 ppm Pb in 3% HNO? - PPB1KN-500</image:title>
      <image:caption>Lead ICP Standard, 1000 ppm Pb in 3% HNO? - PPB1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lithium-icp-standard-10000-ppm-li-in-5-hno-pli10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9b43e6f1-1155-4ad3-9273-68d280aaade2.png?v=1776330132</image:loc>
      <image:title>Lithium ICP Standard, 10,000 ppm Li in 5% HNO? - PLI10KN-500</image:title>
      <image:caption>Lithium ICP Standard, 10,000 ppm Li in 5% HNO? - PLI10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphorus-icp-standard-1000-ppm-p-in-3-hno-pp1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b7595ed6-0cee-44b6-9b32-202479a8f583.png?v=1776330134</image:loc>
      <image:title>Phosphorus ICP Standard, 1000 ppm P in 3% HNO? - PP1KN-100</image:title>
      <image:caption>Phosphorus ICP Standard, 1000 ppm P in 3% HNO? - PP1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lead-icp-standard-1000-ppm-pb-in-3-hno-ppb1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2020610c-4985-4438-b932-b98fdca10e5d.png?v=1776330134</image:loc>
      <image:title>Lead ICP Standard, 1000 ppm Pb in 3% HNO? - PPB1KN-100</image:title>
      <image:caption>Lead ICP Standard, 1000 ppm Pb in 3% HNO? - PPB1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/thallium-icp-standard-10000-ppm-tl-in-5-hno-ptl10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_bea0344c-90e8-4aa6-a4e3-c199343045b5.png?v=1776330134</image:loc>
      <image:title>Thallium ICP Standard, 10,000 ppm Tl in 5% HNO? - PTL10KN-500</image:title>
      <image:caption>Thallium ICP Standard, 10,000 ppm Tl in 5% HNO? - PTL10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/acid-blank-5-vv-nitric-acid-pnacid5-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8eda0461-121a-4bdd-a3a7-5d45ef236190.png?v=1776330135</image:loc>
      <image:title>Acid Blank, 5% (v/v) Nitric Acid - PNACID5-500</image:title>
      <image:caption>Acid Blank, 5% (v/v) Nitric Acid - PNACID5-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lutetium-icp-standard-10000-ppm-lu-in-5-hno-plu10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5ebcc8ce-7413-4d84-bae4-338a46bdbe72.png?v=1776330136</image:loc>
      <image:title>Lutetium ICP Standard, 10,000 ppm Lu in 5% HNO? - PLU10KN-100</image:title>
      <image:caption>Lutetium ICP Standard, 10,000 ppm Lu in 5% HNO? - PLU10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cyclohexanone-acs-reagent-grade-rsoc8600-1c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1c_a084269e-3613-4757-a012-b0608f891dfe.png?v=1776330134</image:loc>
      <image:title>Cyclohexanone, ACS Reagent Grade - RSOC8600-1C</image:title>
      <image:caption>Cyclohexanone, ACS Reagent Grade - RSOC8600-1C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/profile-solution-rplas1-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a8ea21cc-5497-430e-8b99-90296d8e581d.png?v=1776330138</image:loc>
      <image:title>Profile Solution - RPLAS1-100</image:title>
      <image:caption>Profile Solution - RPLAS1-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-icp-standard-1000-ppm-k-in-3-hno-pk1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9897a342-ee2d-4d2e-ab34-1e6157d36d67.png?v=1776330136</image:loc>
      <image:title>Potassium ICP Standard, 1000 ppm K in 3% HNO? - PK1KN-100</image:title>
      <image:caption>Potassium ICP Standard, 1000 ppm K in 3% HNO? - PK1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lead-icp-standard-10000-ppm-pb-in-5-hno-ppb10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b2727a30-36c6-4541-9b98-fc44ccea5bd5.png?v=1776330136</image:loc>
      <image:title>Lead ICP Standard, 10,000 ppm Pb in 5% HNO? - PPB10KN-100</image:title>
      <image:caption>Lead ICP Standard, 10,000 ppm Pb in 5% HNO? - PPB10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphorus-icp-standard-10000-ppm-p-in-ho-pp10kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_99dd5481-f646-46bc-b8f1-b0d02dd0b54f.png?v=1776330138</image:loc>
      <image:title>Phosphorus ICP Standard, 10,000 ppm P in H?O - PP10KW-100</image:title>
      <image:caption>Phosphorus ICP Standard, 10,000 ppm P in H?O - PP10KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/platinum-icp-standard-1000-ppm-pt-in-3-hcl-ppt1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1faa2191-d804-4862-bfc5-922c61b7edb9.png?v=1776330138</image:loc>
      <image:title>Platinum ICP Standard, 1000 ppm Pt in 3% HCl - PPT1KH-500</image:title>
      <image:caption>Platinum ICP Standard, 1000 ppm Pt in 3% HCl - PPT1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/thymolphthalein-indicator-01-wv-in-90-vv-isopropyl-alcohol-sod153-32</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_f7b40507-3f80-4500-8412-2a981e5ca2c9.png?v=1776330140</image:loc>
      <image:title>Thymolphthalein Indicator, 0.1% (w/v) in 90% (v/v) Isopropyl Alcohol - SOD153-32</image:title>
      <image:caption>Thymolphthalein Indicator, 0.1% (w/v) in 90% (v/v) Isopropyl Alcohol - SOD153-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/thulium-icp-standard-1000-ppm-tm-in-3-hno-ptm1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1231dd8e-6525-49c2-903a-9b234f69fba5.png?v=1776330138</image:loc>
      <image:title>Thulium ICP Standard, 1000 ppm Tm in 3% HNO? - PTM1KN-100</image:title>
      <image:caption>Thulium ICP Standard, 1000 ppm Tm in 3% HNO? - PTM1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nickel-icp-standard-10000-ppm-ni-in-5-hno-pni10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a86ce49c-9bbf-4cb9-b3e7-15908d4ea967.png?v=1776330136</image:loc>
      <image:title>Nickel ICP Standard, 10,000 ppm Ni in 5% HNO? - PNI10KN-50</image:title>
      <image:caption>Nickel ICP Standard, 10,000 ppm Ni in 5% HNO? - PNI10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/thymolphthalein-indicator-01-wv-in-90-vv-isopropyl-alcohol-sod153-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6913b550-58c4-4c0e-9b20-cd8bf99df836.png?v=1776330137</image:loc>
      <image:title>Thymolphthalein Indicator, 0.1% (w/v) in 90% (v/v) Isopropyl Alcohol - SOD153-100</image:title>
      <image:caption>Thymolphthalein Indicator, 0.1% (w/v) in 90% (v/v) Isopropyl Alcohol - SOD153-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/uranium-icp-standard-1000-ppm-u-in-3-hno-pu1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_4d57759a-54c8-4d55-b9af-172b49284213.png?v=1776330140</image:loc>
      <image:title>Uranium ICP Standard, 1000 ppm U in 3% HNO? - PU1KN-100</image:title>
      <image:caption>Uranium ICP Standard, 1000 ppm U in 3% HNO? - PU1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lanthanum-icp-standard-10000-ppm-la-in-5-hno-pla10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_fa72eafe-12b7-42d3-a8f9-c6d91b394ff0.png?v=1776330139</image:loc>
      <image:title>Lanthanum ICP Standard, 10,000 ppm La in 5% HNO? - PLA10KN-100</image:title>
      <image:caption>Lanthanum ICP Standard, 10,000 ppm La in 5% HNO? - PLA10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/magnesium-icp-standard-100-ppm-mg-in-dilute-hno-rpmg01kn-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f2eb49f9-a15a-4e49-970a-2c7a63e34cad.png?v=1776330139</image:loc>
      <image:title>Magnesium ICP Standard, 100 ppm Mg in dilute HNO? - RPMG01KN-100N</image:title>
      <image:caption>Magnesium ICP Standard, 100 ppm Mg in dilute HNO? - RPMG01KN-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/titanium-icp-standard-1000-ppm-ti-in-hotr-hf-pti1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_814a125f-06c8-4f2e-a711-7860179aa14e.png?v=1776330138</image:loc>
      <image:title>Titanium ICP Standard, 1000 ppm Ti in H?O/tr HF - PTI1KW-100</image:title>
      <image:caption>Titanium ICP Standard, 1000 ppm Ti in H?O/tr HF - PTI1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/indium-icp-standard-1000-ppm-in-in-3-hno-pin1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_289eae20-33e9-4fc6-b3db-6d668436a0ff.png?v=1776330138</image:loc>
      <image:title>Indium ICP Standard, 1000 ppm In in 3% HNO? - PIN1KN-500</image:title>
      <image:caption>Indium ICP Standard, 1000 ppm In in 3% HNO? - PIN1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hafnium-icp-standard-1000-ppm-hf-in-3-hcl-phf1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5f626b35-8b9e-437e-a78e-17faa6bd9aed.png?v=1776330138</image:loc>
      <image:title>Hafnium ICP Standard, 1000 ppm Hf in 3% HCl - PHF1KH-500</image:title>
      <image:caption>Hafnium ICP Standard, 1000 ppm Hf in 3% HCl - PHF1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/yttrium-icp-standard-10000-ppm-y-in-5-hno-py10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d2a9ba76-afb4-4783-80c1-aae4a7bf42ac.png?v=1776330144</image:loc>
      <image:title>Yttrium ICP Standard, 10,000 ppm Y in 5% HNO? - PY10KN-500</image:title>
      <image:caption>Yttrium ICP Standard, 10,000 ppm Y in 5% HNO? - PY10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/thorium-icp-standard-1000-ppm-th-in-3-hno-pth1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a602fac2-f3ff-4abe-88c3-6d9138839ae7.png?v=1776330139</image:loc>
      <image:title>Thorium ICP Standard, 1000 ppm Th in 3% HNO? - PTH1KN-100</image:title>
      <image:caption>Thorium ICP Standard, 1000 ppm Th in 3% HNO? - PTH1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/methyl-red-indicator-01-wv-alcoholic-solution-sod52-4</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_120c_7d528150-0287-4a5e-af3a-aa7de03b0faa.png?v=1776330140</image:loc>
      <image:title>Methyl Red Indicator, 0.1% (w/v) Alcoholic Solution - SOD52-4</image:title>
      <image:caption>Methyl Red Indicator, 0.1% (w/v) Alcoholic Solution - SOD52-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tungsten-icp-standard-10000-ppm-w-in-5-hno-pw10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8fe0c70b-66bb-4629-92ac-bd973c1d1903.png?v=1776330140</image:loc>
      <image:title>Tungsten ICP Standard, 10,000 ppm W in 5% HNO? - PW10KN-100</image:title>
      <image:caption>Tungsten ICP Standard, 10,000 ppm W in 5% HNO? - PW10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tellurium-icp-standard-1000-ppm-te-in-3-hno-pte1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a89aff86-4697-4c9a-8a6f-0f9428cf266a.png?v=1776330143</image:loc>
      <image:title>Tellurium ICP Standard, 1000 ppm Te in 3% HNO? - PTE1KN-500</image:title>
      <image:caption>Tellurium ICP Standard, 1000 ppm Te in 3% HNO? - PTE1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/vanadium-icp-standard-10000-ppm-v-in-5-hno-pv10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a6cd8f0a-7391-4f92-b377-233343d848bd.png?v=1776330142</image:loc>
      <image:title>Vanadium ICP Standard, 10,000 ppm V in 5% HNO? - PV10KN-500</image:title>
      <image:caption>Vanadium ICP Standard, 10,000 ppm V in 5% HNO? - PV10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/alkaline-titration-solvent-sod118-1</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4a_96702c9e-7940-4bad-a2de-d26e075fc086.png?v=1776330142</image:loc>
      <image:title>Alkaline Titration Solvent - SOD118-1</image:title>
      <image:caption>Alkaline Titration Solvent - SOD118-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/strontium-icp-standard-1000-ppm-sr-in-3-hcl-psr1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d4094fbf-bfc5-4a32-b6a8-0125a3c48c20.png?v=1776330141</image:loc>
      <image:title>Strontium ICP Standard, 1000 ppm Sr in 3% HCl - PSR1KH-100</image:title>
      <image:caption>Strontium ICP Standard, 1000 ppm Sr in 3% HCl - PSR1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/primary-metals-standard-for-gfaaicpicp-ms-rprimet-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_12017a5a-0cea-4ab4-b00c-50d7d8586b01.png?v=1776330142</image:loc>
      <image:title>Primary Metals Standard, for GFAA/ICP/ICP-MS - RPRIMET-100</image:title>
      <image:caption>Primary Metals Standard, for GFAA/ICP/ICP-MS - RPRIMET-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/thallium-icp-standard-1000-ppm-tl-in-3-hno-ptl1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_7fd6bf51-e99d-41db-b940-7ff541b7d32f.png?v=1776330143</image:loc>
      <image:title>Thallium ICP Standard, 1000 ppm Tl in 3% HNO? - PTL1KN-500</image:title>
      <image:caption>Thallium ICP Standard, 1000 ppm Tl in 3% HNO? - PTL1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/yttrium-icp-standard-10000-ppm-y-in-5-hno-py10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3576607b-24b0-41c9-8765-82c1b27c7bb0.png?v=1776330142</image:loc>
      <image:title>Yttrium ICP Standard, 10,000 ppm Y in 5% HNO? - PY10KN-100</image:title>
      <image:caption>Yttrium ICP Standard, 10,000 ppm Y in 5% HNO? - PY10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cyclohexane-acs-reagent-grade-rsoc8500-4c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4c_5d1384b3-f2b4-4929-aff5-7e65accf5e09.png?v=1776330141</image:loc>
      <image:title>Cyclohexane, ACS Reagent Grade - RSOC8500-4C</image:title>
      <image:caption>Cyclohexane, ACS Reagent Grade - RSOC8500-4C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-iron-fe-standard-for-aas-1000-ppm-in-2-hcl-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010019-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_19ed5f00-ff36-4802-8c8d-18b3ca606c56.jpg?v=1776330142</image:loc>
      <image:title>VeriSpec Iron (Fe) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010019-100N</image:title>
      <image:caption>VeriSpec Iron (Fe) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010019-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/rhenium-icp-standard-1000-ppm-re-in-ho-pre1kw-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_13759006-010b-4920-95b8-e7434950a0ab.png?v=1776330140</image:loc>
      <image:title>Rhenium ICP Standard, 1000 ppm Re in H?O - PRE1KW-100</image:title>
      <image:caption>Rhenium ICP Standard, 1000 ppm Re in H?O - PRE1KW-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/vanadium-icp-standard-1000-ppm-v-in-3-hcl-pv1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b6e2b88f-a188-48a0-b7d6-a785ccb938ab.png?v=1776330144</image:loc>
      <image:title>Vanadium ICP Standard, 1000 ppm V in 3% HCl - PV1KH-500</image:title>
      <image:caption>Vanadium ICP Standard, 1000 ppm V in 3% HCl - PV1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tungsten-icp-standard-1000-ppm-w-in-hotr-nhoh-pw1kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0b273acd-8ddc-415f-bffb-2b5dfd5c9a15.png?v=1776330142</image:loc>
      <image:title>Tungsten ICP Standard, 1000 ppm W in H?O/tr NH?OH - PW1KW-500</image:title>
      <image:caption>Tungsten ICP Standard, 1000 ppm W in H?O/tr NH?OH - PW1KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sodium-hydroxide-20-baume-at-60f-sod36-32</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_b99b0740-bfe3-4b9f-bf78-5552ef904544.png?v=1776330143</image:loc>
      <image:title>Sodium Hydroxide, 20° Baumé at 60°F - SOD36-32</image:title>
      <image:caption>Sodium Hydroxide, 20° Baumé at 60°F - SOD36-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ethylenediamine-70-technical-grade-rsoe0100-1a</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_03975b9c-3ce2-4412-bf40-dfcb50524f8c.png?v=1776330143</image:loc>
      <image:title>Ethylenediamine, 70%, Technical Grade - RSOE0100-1A</image:title>
      <image:caption>Ethylenediamine, 70%, Technical Grade - RSOE0100-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/palladium-icp-standard-10000-ppm-pd-in-10-hcl-ppd10kh-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0319cc81-0026-45a5-9a33-404d1e45ae4f.png?v=1776330142</image:loc>
      <image:title>Palladium ICP Standard, 10,000 ppm Pd in 10% HCl - PPD10KH-50</image:title>
      <image:caption>Palladium ICP Standard, 10,000 ppm Pd in 10% HCl - PPD10KH-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ytterbium-icp-standard-1000-ppm-yb-in-3-hno-pyb1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1cd440af-aa3c-4063-8713-7871c692e5c7.png?v=1776330144</image:loc>
      <image:title>Ytterbium ICP Standard, 1000 ppm Yb in 3% HNO? - PYB1KN-100</image:title>
      <image:caption>Ytterbium ICP Standard, 1000 ppm Yb in 3% HNO? - PYB1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/osmium-icp-standard-1000-ppm-os-in-20-hcl-pos1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0d03d28f-a493-445b-a8fd-6fd662b46e7d.png?v=1776330146</image:loc>
      <image:title>Osmium ICP Standard, 1000 ppm Os in 20% HCl - POS1KH-100</image:title>
      <image:caption>Osmium ICP Standard, 1000 ppm Os in 20% HCl - POS1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/vanadium-icp-standard-10000-ppm-v-in-10-hcl-pv10kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5809e64e-9a72-4203-9c9e-7a4d9b56489e.png?v=1776330144</image:loc>
      <image:title>Vanadium ICP Standard, 10,000 ppm V in 10% HCl - PV10KH-500</image:title>
      <image:caption>Vanadium ICP Standard, 10,000 ppm V in 10% HCl - PV10KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ethanol-grain-derived-190-proof-rsoe0010-5e4</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5616cc1c-0f5f-4333-91d4-a0190a824d6f.png?v=1776330145</image:loc>
      <image:title>Ethanol, Grain derived, 190 Proof - RSOE0010-5E4</image:title>
      <image:caption>Ethanol, Grain derived, 190 Proof - RSOE0010-5E4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/bromophenol-blue-indicator-01-wv-in-isopropyl-alcohol-sod98-16</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_8fe9d951-1b7b-42a3-bb94-40997925cb26.png?v=1776330146</image:loc>
      <image:title>Bromophenol Blue Indicator, 0.1% (w/v) in Isopropyl Alcohol - SOD98-16</image:title>
      <image:caption>Bromophenol Blue Indicator, 0.1% (w/v) in Isopropyl Alcohol - SOD98-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/rhenium-icp-standard-1000-ppm-re-in-ho-pre1kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e991f429-9a35-4919-85bc-5f84f2fd5e85.png?v=1776330146</image:loc>
      <image:title>Rhenium ICP Standard, 1000 ppm Re in H?O - PRE1KW-500</image:title>
      <image:caption>Rhenium ICP Standard, 1000 ppm Re in H?O - PRE1KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/silver-nitrate-00100-normal-n100-in-isopropyl-alcohol-sod90-32</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1c_ca0eae20-f20e-48da-a80c-ed0af3071605.png?v=1776330147</image:loc>
      <image:title>Silver Nitrate, 0.0100 Normal (N/100) in Isopropyl Alcohol - SOD90-32</image:title>
      <image:caption>Silver Nitrate, 0.0100 Normal (N/100) in Isopropyl Alcohol - SOD90-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zinc-icp-standard-1000-ppm-zn-in-3-hno-pzn1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_0905dec1-da9e-46e4-a276-8d8c198faadd.png?v=1776330143</image:loc>
      <image:title>Zinc ICP Standard, 1000 ppm Zn in 3% HNO? - PZN1KN-500</image:title>
      <image:caption>Zinc ICP Standard, 1000 ppm Zn in 3% HNO? - PZN1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloroform-acs-reagent-grade-rsoc0020-500c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500c_fa5d9b98-8c17-4c09-8595-31c75b3d4b65.png?v=1776330145</image:loc>
      <image:title>Chloroform, ACS Reagent Grade - RSOC0020-500C</image:title>
      <image:caption>Chloroform, ACS Reagent Grade - RSOC0020-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/acetic-titration-solvent-sod117-1</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4a_9d50394c-fae6-4f98-8282-4f1dbd0d44ab.png?v=1776330146</image:loc>
      <image:title>Acetic Titration Solvent - SOD117-1</image:title>
      <image:caption>Acetic Titration Solvent - SOD117-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/titanium-icp-standard-1000-ppm-ti-in-hotr-hf-pti1kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_623677c2-b409-4bdf-905a-1a11f76bf1f8.png?v=1776330143</image:loc>
      <image:title>Titanium ICP Standard, 1000 ppm Ti in H?O/tr HF - PTI1KW-500</image:title>
      <image:caption>Titanium ICP Standard, 1000 ppm Ti in H?O/tr HF - PTI1KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/thallium-icp-standard-10000-ppm-tl-in-5-hno-ptl10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ce701937-79de-46f6-b513-8526ba7bdaa1.png?v=1776330144</image:loc>
      <image:title>Thallium ICP Standard, 10,000 ppm Tl in 5% HNO? - PTL10KN-50</image:title>
      <image:caption>Thallium ICP Standard, 10,000 ppm Tl in 5% HNO? - PTL10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tungsten-icp-standard-1000-ppm-w-in-2-hno1-hf-pw1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f6dcf176-7563-42a4-88d9-5229e8c88755.png?v=1776330143</image:loc>
      <image:title>Tungsten ICP Standard, 1000 ppm W in 2% HNO?/1% HF - PW1KN-500</image:title>
      <image:caption>Tungsten ICP Standard, 1000 ppm W in 2% HNO?/1% HF - PW1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/palladium-icp-standard-1000-ppm-pd-in-3-hcl-ppd1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e1ad99fc-911c-4455-863e-601ef73cb0fa.png?v=1776330145</image:loc>
      <image:title>Palladium ICP Standard, 1000 ppm Pd in 3% HCl - PPD1KH-100</image:title>
      <image:caption>Palladium ICP Standard, 1000 ppm Pd in 3% HCl - PPD1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tungsten-icp-standard-1000-ppm-w-in-2-hno1-hf-pw1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2276d831-4533-41d3-95d1-2e58a06c0d1b.png?v=1776330148</image:loc>
      <image:title>Tungsten ICP Standard, 1000 ppm W in 2% HNO?/1% HF - PW1KN-100</image:title>
      <image:caption>Tungsten ICP Standard, 1000 ppm W in 2% HNO?/1% HF - PW1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lithium-icp-standard-1000-ppm-li-in-3-hno-pli1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_85b845b0-63dc-4e30-b92d-f6a2b27e404a.png?v=1776330148</image:loc>
      <image:title>Lithium ICP Standard, 1000 ppm Li in 3% HNO? - PLI1KN-100</image:title>
      <image:caption>Lithium ICP Standard, 1000 ppm Li in 3% HNO? - PLI1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/4-aminophenazone-008-wv-in-borate-buffer-sod58-32</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_03dd8d48-4122-46fc-a650-0250aae97722.png?v=1776330144</image:loc>
      <image:title>4-Aminophenazone, 0.08% (w/v) in Borate Buffer - SOD58-32</image:title>
      <image:caption>4-Aminophenazone, 0.08% (w/v) in Borate Buffer - SOD58-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lutetium-icp-standard-1000-ppm-lu-in-3-hno-plu1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_70b48b46-fc71-4673-bf9d-6f69d8cdb7a8.png?v=1776330148</image:loc>
      <image:title>Lutetium ICP Standard, 1000 ppm Lu in 3% HNO? - PLU1KN-100</image:title>
      <image:caption>Lutetium ICP Standard, 1000 ppm Lu in 3% HNO? - PLU1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ammonium-thiocyanate-05-wv-in-methanol-with-dilute-sulfuric-acid-sod55-1</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4a_5375bddf-4579-4b18-9771-2c2275b4293f.png?v=1776330144</image:loc>
      <image:title>Ammonium Thiocyanate, 0.5% (w/v) in Methanol, with dilute Sulfuric Acid - SOD55-1</image:title>
      <image:caption>Ammonium Thiocyanate, 0.5% (w/v) in Methanol, with dilute Sulfuric Acid - SOD55-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cyclohexanone-acs-reagent-grade-rsoc8600-4c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4c_b66179a0-3667-4b4b-bbe3-cd9546ce5057.png?v=1776330147</image:loc>
      <image:title>Cyclohexanone, ACS Reagent Grade - RSOC8600-4C</image:title>
      <image:caption>Cyclohexanone, ACS Reagent Grade - RSOC8600-4C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/vanadium-icp-standard-1000-ppm-v-in-3-hno-pv1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c6d31233-654b-485e-b59c-67e7994e914f.png?v=1776330149</image:loc>
      <image:title>Vanadium ICP Standard, 1000 ppm V in 3% HNO? - PV1KN-100</image:title>
      <image:caption>Vanadium ICP Standard, 1000 ppm V in 3% HNO? - PV1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/rhodium-icp-standard-10000-ppm-rh-in-20-hcl-prh10kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_df64f346-c721-4e22-a5e9-9fee9fcc63cd.png?v=1776330145</image:loc>
      <image:title>Rhodium ICP Standard, 10,000 ppm Rh in 20% HCl - PRH10KH-100</image:title>
      <image:caption>Rhodium ICP Standard, 10,000 ppm Rh in 20% HCl - PRH10KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/praseodymium-icp-standard-1000-ppm-pr-in-3-hno-ppr1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f11dbcb8-0ab2-40d6-a973-239eddcdd9ca.png?v=1776330145</image:loc>
      <image:title>Praseodymium ICP Standard, 1000 ppm Pr in 3% HNO? - PPR1KN-100</image:title>
      <image:caption>Praseodymium ICP Standard, 1000 ppm Pr in 3% HNO? - PPR1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/lead-icp-standard-10000-ppm-pb-in-5-hno-ppb10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5cd5ed98-cf6b-4345-95dd-9610f2689634.png?v=1776330150</image:loc>
      <image:title>Lead ICP Standard, 10,000 ppm Pb in 5% HNO? - PPB10KN-500</image:title>
      <image:caption>Lead ICP Standard, 10,000 ppm Pb in 5% HNO? - PPB10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tungsten-icp-standard-10000-ppm-w-in-hotr-nhoh-pw10kw-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b378ba72-14c6-4433-974f-27d31d7c1194.png?v=1776330145</image:loc>
      <image:title>Tungsten ICP Standard, 10,000 ppm W in H?O/tr NH?OH - PW10KW-500</image:title>
      <image:caption>Tungsten ICP Standard, 10,000 ppm W in H?O/tr NH?OH - PW10KW-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/vanadium-icp-standard-10000-ppm-v-in-5-hno-pv10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c17451ab-3275-474f-b70f-655fab0f9dc3.png?v=1776330145</image:loc>
      <image:title>Vanadium ICP Standard, 10,000 ppm V in 5% HNO? - PV10KN-100</image:title>
      <image:caption>Vanadium ICP Standard, 10,000 ppm V in 5% HNO? - PV10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/platinum-icp-standard-1000-ppm-pt-in-3-hcl-ppt1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d2595f0f-2062-422b-9392-bf6d43e7d4c4.png?v=1776330149</image:loc>
      <image:title>Platinum ICP Standard, 1000 ppm Pt in 3% HCl - PPT1KH-100</image:title>
      <image:caption>Platinum ICP Standard, 1000 ppm Pt in 3% HCl - PPT1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ethanol-grain-derived-190-proof-rsoe0010-55e</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-55e_60e04b08-f84d-4794-89da-edd617b16a6b.png?v=1776330147</image:loc>
      <image:title>Ethanol, Grain derived, 190 Proof - RSOE0010-55E</image:title>
      <image:caption>Ethanol, Grain derived, 190 Proof - RSOE0010-55E</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phosphorus-icp-standard-10000-ppm-p-in-ho-pp10kw-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a819385e-1050-4b40-9fdd-3e4008086b06.png?v=1776330146</image:loc>
      <image:title>Phosphorus ICP Standard, 10,000 ppm P in H?O - PP10KW-50</image:title>
      <image:caption>Phosphorus ICP Standard, 10,000 ppm P in H?O - PP10KW-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/potassium-periodate-010-wv-in-borate-buffer-sod59-32</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_f4f1ebca-1580-4bfe-ad57-38483af62825.png?v=1776330148</image:loc>
      <image:title>Potassium Periodate, 0.10% (w/v) in Borate Buffer - SOD59-32</image:title>
      <image:caption>Potassium Periodate, 0.10% (w/v) in Borate Buffer - SOD59-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zinc-icp-standard-10000-ppm-zn-in-5-hno-pzn10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8eed866e-5e2f-44aa-bda2-227dd6aab012.png?v=1776330148</image:loc>
      <image:title>Zinc ICP Standard, 10,000 ppm Zn in 5% HNO? - PZN10KN-100</image:title>
      <image:caption>Zinc ICP Standard, 10,000 ppm Zn in 5% HNO? - PZN10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/acetonitrile-hplc-grade-rsoa0020-4c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4c_21b7cc42-b68d-4b9f-abb9-f874fc38c298.png?v=1776330146</image:loc>
      <image:title>Acetonitrile, HPLC Grade - RSOA0020-4C</image:title>
      <image:caption>Acetonitrile, HPLC Grade - RSOA0020-4C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-indium-in-standard-for-aas-1000-ppm-in-2-hno-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010026-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_855a50f5-d2dd-457f-9897-6e5ec658b7df.jpg?v=1776330148</image:loc>
      <image:title>VeriSpec Indium (In) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010026-500N</image:title>
      <image:caption>VeriSpec Indium (In) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010026-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zirconium-icp-standard-10000-ppm-zr-in-5-hcl-pzr10kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_91e09ea0-a6cf-4174-aa99-802d5b2b6972.png?v=1776330146</image:loc>
      <image:title>Zirconium ICP Standard, 10,000 ppm Zr in 5% HCl - PZR10KH-500</image:title>
      <image:caption>Zirconium ICP Standard, 10,000 ppm Zr in 5% HCl - PZR10KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ytterbium-icp-standard-1000-ppm-yb-in-3-hno-pyb1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2849e55a-4b38-49d3-a126-31d76250cf0f.png?v=1776330148</image:loc>
      <image:title>Ytterbium ICP Standard, 1000 ppm Yb in 3% HNO? - PYB1KN-500</image:title>
      <image:caption>Ytterbium ICP Standard, 1000 ppm Yb in 3% HNO? - PYB1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/rhodium-icp-standard-1000-ppm-rh-in-3-hcl-prh1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c4100345-11d3-49ac-8cda-20482fa520aa.png?v=1776330150</image:loc>
      <image:title>Rhodium ICP Standard, 1000 ppm Rh in 3% HCl - PRH1KH-500</image:title>
      <image:caption>Rhodium ICP Standard, 1000 ppm Rh in 3% HCl - PRH1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/rhodium-icp-standard-1000-ppm-rh-in-3-hcl-prh1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8b6c120a-8df3-400b-9c26-8a5b88753cd0.png?v=1776330149</image:loc>
      <image:title>Rhodium ICP Standard, 1000 ppm Rh in 3% HCl - PRH1KH-100</image:title>
      <image:caption>Rhodium ICP Standard, 1000 ppm Rh in 3% HCl - PRH1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-mercury-hg-standard-for-aas-1000-ppm-in-10-hno-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010024-500c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_fbc70bdf-8c5c-4cde-9f5f-8e376caa9ffe.png?v=1776330150</image:loc>
      <image:title>VeriSpec Mercury (Hg) Standard for AAS 1000 ppm in 10% HNO? Guide 34 Accredited Facility - RV010024-500C</image:title>
      <image:caption>VeriSpec Mercury (Hg) Standard for AAS 1000 ppm in 10% HNO? Guide 34 Accredited Facility - RV010024-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/thallium-icp-standard-1000-ppm-tl-in-3-hno-ptl1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_929ed011-c1c4-46d5-9f52-038a513067c5.png?v=1776330150</image:loc>
      <image:title>Thallium ICP Standard, 1000 ppm Tl in 3% HNO? - PTL1KN-100</image:title>
      <image:caption>Thallium ICP Standard, 1000 ppm Tl in 3% HNO? - PTL1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/molybdenum-icp-standard-1000-ppm-mo-in-3-hnotr-hf-pmo1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9be30041-68a9-46ab-a715-698b8f2d432b.png?v=1776330149</image:loc>
      <image:title>Molybdenum ICP Standard, 1000 ppm Mo in 3% HNO?/tr HF - PMO1KN-500</image:title>
      <image:caption>Molybdenum ICP Standard, 1000 ppm Mo in 3% HNO?/tr HF - PMO1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zirconium-icp-standard-1000-ppm-zr-in-3-hcl-pzr1kh-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_ea7ede7a-76d0-48f2-af03-d612932d2627.png?v=1776330149</image:loc>
      <image:title>Zirconium ICP Standard, 1000 ppm Zr in 3% HCl - PZR1KH-500</image:title>
      <image:caption>Zirconium ICP Standard, 1000 ppm Zr in 3% HCl - PZR1KH-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/yttrium-icp-standard-1000-ppm-y-in-3-hno-py1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f9e9cfd3-c1ad-4e8d-b6f0-67b5d38562ff.png?v=1776330151</image:loc>
      <image:title>Yttrium ICP Standard, 1000 ppm Y in 3% HNO? - PY1KN-100</image:title>
      <image:caption>Yttrium ICP Standard, 1000 ppm Y in 3% HNO? - PY1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/glycerin-acs-reagent-grade-rsog0020-20e1</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_40bab73b-48cd-454f-9ead-35c56412ce13.png?v=1776330148</image:loc>
      <image:title>Glycerin, ACS Reagent Grade - RSOG0020-20E1</image:title>
      <image:caption>Glycerin, ACS Reagent Grade - RSOG0020-20E1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-iron-fe-standard-for-aas-1000-ppm-in-2-hcl-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010019-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_7a176511-6114-4d91-9a94-125c5437a32c.jpg?v=1776330149</image:loc>
      <image:title>VeriSpec Iron (Fe) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010019-500N</image:title>
      <image:caption>VeriSpec Iron (Fe) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010019-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-holmium-ho-standard-for-aas-1000-ppm-in-2-hno-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010025-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_40c5c901-f55d-4fb1-899f-7a8b09f54222.jpg?v=1776330150</image:loc>
      <image:title>VeriSpec Holmium (Ho) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010025-500N</image:title>
      <image:caption>VeriSpec Holmium (Ho) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010025-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tungsten-icp-standard-10000-ppm-w-in-5-hno-pw10kn-50</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_119557cf-e8af-4e72-95dc-9f312e8bb38a.png?v=1776330148</image:loc>
      <image:title>Tungsten ICP Standard, 10,000 ppm W in 5% HNO? - PW10KN-50</image:title>
      <image:caption>Tungsten ICP Standard, 10,000 ppm W in 5% HNO? - PW10KN-50</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-germanium-ge-standard-for-aas-1000-ppm-in-5-hno1-hf-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010022-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_e653f54e-905e-4864-834f-de7bd6802f6d.jpg?v=1776330149</image:loc>
      <image:title>VeriSpec Germanium (Ge) Standard for AAS 1000 ppm in 5% HNO?/1% HF Guide 34 Accredited Facility - RV010022-500N</image:title>
      <image:caption>VeriSpec Germanium (Ge) Standard for AAS 1000 ppm in 5% HNO?/1% HF Guide 34 Accredited Facility - RV010022-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/alkaline-titration-solvent-sod118-5</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_20f_7ad3116b-9a98-4243-b14f-2892f9eae6b4.png?v=1776330148</image:loc>
      <image:title>Alkaline Titration Solvent - SOD118-5</image:title>
      <image:caption>Alkaline Titration Solvent - SOD118-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/formaldehyde-37-acs-reagent-grade-rsof0010-500a</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_88211d31-14f1-4d71-99e8-3c7ddda1e5fe.png?v=1776330151</image:loc>
      <image:title>Formaldehyde, 37%, ACS Reagent Grade - RSOF0010-500A</image:title>
      <image:caption>Formaldehyde, 37%, ACS Reagent Grade - RSOF0010-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zirconium-icp-standard-1000-ppm-zr-in-3-hno-pzr1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c357460b-825c-418c-9de8-7b1eca2c3251.png?v=1776330151</image:loc>
      <image:title>Zirconium ICP Standard, 1000 ppm Zr in 3% HNO? - PZR1KN-100</image:title>
      <image:caption>Zirconium ICP Standard, 1000 ppm Zr in 3% HNO? - PZR1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zirconium-icp-standard-10000-ppm-zr-in-5-hno-pzr10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_573faefc-ec22-4656-80cb-175f9ef2a32d.png?v=1776330149</image:loc>
      <image:title>Zirconium ICP Standard, 10,000 ppm Zr in 5% HNO? - PZR10KN-500</image:title>
      <image:caption>Zirconium ICP Standard, 10,000 ppm Zr in 5% HNO? - PZR10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-gadolinium-gd-standard-for-aas-1000-ppm-in-2-hno-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010021-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_58f9a583-5683-4313-8eaa-852b7f7f5f22.jpg?v=1776330150</image:loc>
      <image:title>VeriSpec Gadolinium (Gd) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010021-100N</image:title>
      <image:caption>VeriSpec Gadolinium (Gd) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010021-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-holmium-ho-standard-for-aas-1000-ppm-in-2-hno-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010025-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_11edbb10-085c-47e5-ace0-0ef37e83f0f4.jpg?v=1776330152</image:loc>
      <image:title>VeriSpec Holmium (Ho) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010025-100N</image:title>
      <image:caption>VeriSpec Holmium (Ho) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010025-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-potassium-k-standard-for-aas-1000-ppm-in-2-hcl-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010028-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_e8115329-0616-49a8-a353-d2d11bf4765d.jpg?v=1776330152</image:loc>
      <image:title>VeriSpec Potassium (K) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010028-500N</image:title>
      <image:caption>VeriSpec Potassium (K) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010028-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/vanadium-icp-standard-1000-ppm-v-in-3-hno-pv1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_3a34a9dd-1e6c-4eab-a7ec-bcc98b3e2978.png?v=1776330151</image:loc>
      <image:title>Vanadium ICP Standard, 1000 ppm V in 3% HNO? - PV1KN-500</image:title>
      <image:caption>Vanadium ICP Standard, 1000 ppm V in 3% HNO? - PV1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/platinum-icp-standard-10000-ppm-pt-in-20-hcl-ppt10kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2875e9b0-a45b-446d-bf87-62ecd62323d4.png?v=1776330155</image:loc>
      <image:title>Platinum ICP Standard, 10,000 ppm Pt in 20% HCl - PPT10KH-100</image:title>
      <image:caption>Platinum ICP Standard, 10,000 ppm Pt in 20% HCl - PPT10KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zirconium-icp-standard-1000-ppm-zr-in-3-hno-pzr1kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_53b2ff8a-c199-47f3-a53c-a405633b3dde.png?v=1776330149</image:loc>
      <image:title>Zirconium ICP Standard, 1000 ppm Zr in 3% HNO? - PZR1KN-500</image:title>
      <image:caption>Zirconium ICP Standard, 1000 ppm Zr in 3% HNO? - PZR1KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-iridium-ir-standard-for-aas-1000-ppm-in-10-hcl-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010027-100c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_3bbfa91b-4bde-4e76-ab78-0db6cc989fd7.jpg?v=1776330150</image:loc>
      <image:title>VeriSpec Iridium (Ir) Standard for AAS 1000 ppm in 10% HCl Guide 34 Accredited Facility - RV010027-100C</image:title>
      <image:caption>VeriSpec Iridium (Ir) Standard for AAS 1000 ppm in 10% HCl Guide 34 Accredited Facility - RV010027-100C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-hafnium-hf-standard-for-aas-1000-ppm-in-2-hno1-hf-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010023-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_afc7feb7-2877-4382-bcf4-6915f3b8c6b7.jpg?v=1776330148</image:loc>
      <image:title>VeriSpec Hafnium (Hf) Standard for AAS 1000 ppm in 2% HNO?/1% HF Guide 34 Accredited Facility - RV010023-100N</image:title>
      <image:caption>VeriSpec Hafnium (Hf) Standard for AAS 1000 ppm in 2% HNO?/1% HF Guide 34 Accredited Facility - RV010023-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-gadolinium-gd-standard-for-aas-1000-ppm-in-2-hno-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010021-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_8e7562da-4b0d-40d5-8cb1-7b29e26d6300.jpg?v=1776330149</image:loc>
      <image:title>VeriSpec Gadolinium (Gd) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010021-500N</image:title>
      <image:caption>VeriSpec Gadolinium (Gd) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010021-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-gallium-ga-standard-for-aas-1000-ppm-in-2-hno-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010020-500n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_528dc87e-f726-4b42-8a49-e4d1a52a22ee.jpg?v=1776330150</image:loc>
      <image:title>VeriSpec Gallium (Ga) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010020-500N</image:title>
      <image:caption>VeriSpec Gallium (Ga) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010020-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-lanthanum-la-standard-for-aas-1000-ppm-in-2-hcl-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010029-100n</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_0ad01969-9f23-44f4-bd7c-79be4918977c.jpg?v=1776330153</image:loc>
      <image:title>VeriSpec Lanthanum (La) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010029-100N</image:title>
      <image:caption>VeriSpec Lanthanum (La) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010029-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/sulfuric-acid-87-ww-sd81-5pt</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5c61dddd-edc7-49ab-8989-630c101e4329.png?v=1776330148</image:loc>
      <image:title>Sulfuric Acid, 87% (w/w) - SD81-5PT</image:title>
      <image:caption>Sulfuric Acid, 87% (w/w) - SD81-5PT</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-mercury-hg-standard-for-aas-1000-ppm-in-10-hno-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010024-100c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_e3bef906-a28b-4962-b454-8ea67cd98aeb.jpg?v=1776330151</image:loc>
      <image:title>VeriSpec Mercury (Hg) Standard for AAS 1000 ppm in 10% HNO? Guide 34 Accredited Facility - RV010024-100C</image:title>
      <image:caption>VeriSpec Mercury (Hg) Standard for AAS 1000 ppm in 10% HNO? Guide 34 Accredited Facility - RV010024-100C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zinc-icp-standard-10000-ppm-zn-in-5-hno-pzn10kn-500</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b8cb2cdf-153a-4c71-b70b-13ea4991d047.png?v=1776330153</image:loc>
      <image:title>Zinc ICP Standard, 10,000 ppm Zn in 5% HNO? - PZN10KN-500</image:title>
      <image:caption>Zinc ICP Standard, 10,000 ppm Zn in 5% HNO? - PZN10KN-500</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zirconium-icp-standard-10000-ppm-zr-in-5-hno-pzr10kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d45544ce-bec5-4a52-a5bd-43de94e81eb2.png?v=1776330150</image:loc>
      <image:title>Zirconium ICP Standard, 10,000 ppm Zr in 5% HNO? - PZR10KN-100</image:title>
      <image:caption>Zirconium ICP Standard, 10,000 ppm Zr in 5% HNO? - PZR10KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/formaldehyde-37-acs-reagent-grade-rsof0010-1a</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1a_b30c3906-3434-469b-baf9-f51a335e53eb.png?v=1776330152</image:loc>
      <image:title>Formaldehyde, 37%, ACS Reagent Grade - RSOF0010-1A</image:title>
      <image:caption>Formaldehyde, 37%, ACS Reagent Grade - RSOF0010-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ruthenium-icp-standard-1000-ppm-ru-in-10-hcl-pru1kh-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_fb677076-579e-425e-90c0-5630fb7c05c6.png?v=1776330155</image:loc>
      <image:title>Ruthenium ICP Standard, 1000 ppm Ru in 10% HCl - PRU1KH-100</image:title>
      <image:caption>Ruthenium ICP Standard, 1000 ppm Ru in 10% HCl - PRU1KH-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/bromothymol-blue-indicator-004-wv-in-isopropyl-alcohol-sd13-16</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_f7e18ea2-2c29-4a9d-9916-0b7c06443521.png?v=1776330156</image:loc>
      <image:title>Bromothymol Blue Indicator, 0.04% (w/v) in Isopropyl Alcohol - SD13-16</image:title>
      <image:caption>Bromothymol Blue Indicator, 0.04% (w/v) in Isopropyl Alcohol - SD13-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/formaldehyde-37-acs-reagent-grade-rsof0010-4a</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4a_0b7ded9b-e7c8-4dd7-91ca-212ed625fb34.png?v=1776330154</image:loc>
      <image:title>Formaldehyde, 37%, ACS Reagent Grade - RSOF0010-4A</image:title>
      <image:caption>Formaldehyde, 37%, ACS Reagent Grade - RSOF0010-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/zinc-icp-standard-1000-ppm-zn-in-3-hno-pzn1kn-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_66c3350b-54a1-42b4-87d7-63af8eec4ba9.png?v=1776330153</image:loc>
      <image:title>Zinc ICP Standard, 1000 ppm Zn in 3% HNO? - PZN1KN-100</image:title>
      <image:caption>Zinc ICP Standard, 1000 ppm Zn in 3% HNO? - PZN1KN-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/isopropanol-acs-reagent-grade-rsoi0020-4c</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4c_48f98415-28e6-4d61-acf5-67e027b98945.png?v=1776330152</image:loc>
      <image:title>Isopropanol, ACS Reagent Grade - RSOI0020-4C</image:title>
      <image:caption>Isopropanol, ACS Reagent Grade - RSOI0020-4C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/quality-control-standard-23-modified-rqc23mod-100</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c2bd05fe-d9b7-454b-9c51-e5fea4c4e19a.png?v=1776330154</image:loc>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/heptane-reagent-grade-rsoh0005-20e4</loc>
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  <url>
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  <url>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_015470ba-c7b8-45f9-a5d3-10412c3e0c2a.jpg?v=1776330153</image:loc>
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      <image:caption>VeriSpec Niobium (Nb) Standard for AAS 1000 ppm in 5% HNO?/1% HF Guide 34 Accredited Facility - RV010035-500N</image:caption>
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  <url>
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      <image:caption>VeriSpec Gallium (Ga) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010020-100N</image:caption>
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  <url>
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      <image:title>Quality Control Standard 15 for ICP - RQC15-500</image:title>
      <image:caption>Quality Control Standard 15 for ICP - RQC15-500</image:caption>
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  <url>
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      <image:title>VeriSpec Sodium (Na) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010080-100N</image:title>
      <image:caption>VeriSpec Sodium (Na) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010080-100N</image:caption>
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  <url>
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      <image:caption>VeriSpec Antimony (Sb) Standard for AAS 1000 ppm in 5% HNO?/1% HF Guide 34 Accredited Facility - RV010082-500N</image:caption>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  </url>
  <url>
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      <image:title>Hexanes, ACS Reagent Grade - RSOH0010-4C</image:title>
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  </url>
  <url>
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    <changefreq>daily</changefreq>
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  </url>
  <url>
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    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f0f2788f-c220-43e5-b6c6-cd85cdf22bea.png?v=1776330156</image:loc>
      <image:title>Zinc ICP Standard, 10,000 ppm Zn in 5% HNO? - PZN10KN-50</image:title>
      <image:caption>Zinc ICP Standard, 10,000 ppm Zn in 5% HNO? - PZN10KN-50</image:caption>
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  </url>
  <url>
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    <changefreq>daily</changefreq>
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      <image:caption>Ethanol, Grain Derived, 200 Proof - RSOE0013-5E4</image:caption>
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  </url>
  <url>
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    <changefreq>daily</changefreq>
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      <image:title>VeriSpec Iron (Fe) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010019-1N</image:title>
      <image:caption>VeriSpec Iron (Fe) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010019-1N</image:caption>
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  </url>
  <url>
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    <changefreq>daily</changefreq>
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      <image:title>VeriSpec Neodymium (Nd) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010036-100N</image:title>
      <image:caption>VeriSpec Neodymium (Nd) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010036-100N</image:caption>
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  </url>
  <url>
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    <changefreq>daily</changefreq>
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      <image:title>VeriSpec Magnesium (Mg) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010031-1N</image:title>
      <image:caption>VeriSpec Magnesium (Mg) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010031-1N</image:caption>
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  </url>
  <url>
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    <changefreq>daily</changefreq>
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      <image:title>VeriSpec Antimony (Sb) Standard for AAS 1000 ppm in 5% HNO?/1% H - RV010082-100N</image:title>
      <image:caption>VeriSpec Antimony (Sb) Standard for AAS 1000 ppm in 5% HNO?/1% HF Guide 34 Accredited Facility - RV010082-100N</image:caption>
    </image:image>
  </url>
  <url>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-verispec_bottles_1_b23623c2-e831-49f0-b6b8-6c046c55da58.jpg?v=1776330157</image:loc>
      <image:title>VeriSpec Magnesium (Mg) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010077-500N</image:title>
      <image:caption>VeriSpec Magnesium (Mg) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010077-500N</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/methyl-red-indicator-1-gl-in-isopropyl-alcohol-sd49-32</loc>
    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1c_6cf8012b-ddd3-44f6-bfda-72afb02257c0.png?v=1776330155</image:loc>
      <image:title>Methyl Red Indicator, 1 g/L in Isopropyl Alcohol - SD49-32</image:title>
      <image:caption>Methyl Red Indicator, 1 g/L in Isopropyl Alcohol - SD49-32</image:caption>
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  </url>
  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-22T15:55:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Ethyl Acetate, ACS Reagent Grade - RSOE0300-4C</image:title>
      <image:caption>Ethyl Acetate, ACS Reagent Grade - RSOE0300-4C</image:caption>
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  </url>
  <url>
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    <changefreq>daily</changefreq>
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      <image:title>VeriSpec Tellurium (Te) Standard for AAS 1000 ppm in 20% HCl Guide 34 Accredited Facility - RV010085-500N</image:title>
      <image:caption>VeriSpec Tellurium (Te) Standard for AAS 1000 ppm in 20% HCl Guide 34 Accredited Facility - RV010085-500N</image:caption>
    </image:image>
  </url>
  <url>
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      <image:caption>VeriSpec Sodium (Na) Standard for AAS 1000 ppm in 1% HCl Guide 34 Accredited Facility - RV010034-500N</image:caption>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-55e_a3910a4d-016f-435b-ab72-cb3aaf291679.png?v=1776330162</image:loc>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5a3f57ec-4261-4edb-9e6c-62149cb35ac4.png?v=1776330162</image:loc>
      <image:title>Sulfur ICP Standard, 100 ppm S in H?O - RPS01KW0-100N</image:title>
      <image:caption>Sulfur ICP Standard, 100 ppm S in H?O - RPS01KW0-100N</image:caption>
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  <url>
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      <image:title>VeriSpec Potassium (K) Standard for AAS 1000 ppm in 2% HCl Guide 34 Accredited Facility - RV010028-100N</image:title>
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  <url>
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      <image:title>Rubidium ICP Standard, 1000 ppm Rb in 3% HNO? - PRB1KN-100</image:title>
      <image:caption>Rubidium ICP Standard, 1000 ppm Rb in 3% HNO? - PRB1KN-100</image:caption>
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  <url>
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      <image:caption>Spectral Interference Check Standards Set - RSICSET1-100</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-molybdenum-mo-standard-for-aas-1000-ppm-in-2-hno1-hf-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010033-500n</loc>
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      <image:caption>VeriSpec Molybdenum (Mo) Standard for AAS 1000 ppm in 2% HNO?/1% HF Guide 34 Accredited Facility - RV010033-500N</image:caption>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  </url>
  <url>
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      <image:title>B S &amp; W Solvent, Toluene Saturated with Water at 75°F - SOD10-1</image:title>
      <image:caption>B S &amp; W Solvent, Toluene Saturated with Water at 75°F - SOD10-1</image:caption>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500c_080b4b14-57f0-4224-9e4b-061901cd2614.png?v=1776330160</image:loc>
      <image:title>Methyl Red Indicator, 1 g/L in Isopropyl Alcohol - SD49-16</image:title>
      <image:caption>Methyl Red Indicator, 1 g/L in Isopropyl Alcohol - SD49-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/verispec-palladium-pd-standard-for-aas-1000-ppm-in-5-hno-manufactured-and-tested-in-an-iso-17025guide-34-accredited-facility-rv010081-500c</loc>
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  <url>
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  <url>
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  <url>
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  <url>
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      <image:caption>VeriSpec Tin (Sn) Standard for AAS 1000 ppm in 20% HCl Guide 34 Accredited Facility - RV010083-500N</image:caption>
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  <url>
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      <image:title>VeriSpec Lanthanum (La) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010076-500N</image:title>
      <image:caption>VeriSpec Lanthanum (La) Standard for AAS 1000 ppm in 2% HNO? Guide 34 Accredited Facility - RV010076-500N</image:caption>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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  <url>
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