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      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_09634217-1b1a-4bbc-ba39-dcf62b9b3787.jpg?v=1737683208</image:loc>
      <image:title>VeriSpec ICV Standard 26 1000 ppm Ca, Fe, K, Mg, Na, Sr; 10 ppm Ag, Al, As, Ba, Be, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Sb, Se, T - RV010656-100N</image:title>
      <image:caption>VeriSpec ICV Standard 26 1000 ppm Ca, Fe, K, Mg, Na, Sr; 10 ppm Ag, Al, As, Ba, Be, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Sb, Se, T - RV010656-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-interference-check-solution-a-20000-ppm-cl-ca-3000-ppm-2500-ppm-fe-na-2000-ppm-c-1000-ppm-al-mg-p-k-s-20-ppm-mo-ti-m-rv010657-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_e7595382-8267-45bb-a2e9-99edc86a33ce.jpg?v=1737683209</image:loc>
      <image:title>VeriSpec Interference Check Solution A 20,000 ppm Cl, Ca 3000 ppm; 2500 ppm Fe, Na; 2000 ppm C; 1000 ppm Al, Mg, P, K, S; 20 ppm Mo, Ti  M - RV010657-100N</image:title>
      <image:caption>VeriSpec Interference Check Solution A 20,000 ppm Cl, Ca 3000 ppm; 2500 ppm Fe, Na; 2000 ppm C; 1000 ppm Al, Mg, P, K, S; 20 ppm Mo, Ti  M - RV010657-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-interference-check-solution-a-20000-ppm-cl-ca-3000-ppm-2500-ppm-fe-na-2000-ppm-c-1000-ppm-al-mg-p-k-s-20-ppm-mo-ti-m-rv010657-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_80385c22-7326-4887-91d1-4089799b4fc6.jpg?v=1704980989</image:loc>
      <image:title>VeriSpec Interference Check Solution A 20,000 ppm Cl, Ca 3000 ppm; 2500 ppm Fe, Na; 2000 ppm C; 1000 ppm Al, Mg, P, K, S; 20 ppm Mo, Ti  M - RV010657-500N</image:title>
      <image:caption>VeriSpec Interference Check Solution A 20,000 ppm Cl, Ca 3000 ppm; 2500 ppm Fe, Na; 2000 ppm C; 1000 ppm Al, Mg, P, K, S; 20 ppm Mo, Ti  M - RV010657-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-interference-check-solution-b-20-ppm-cr-co-cu-mn-ni-v-10-ppm-as-cd-se-cn-5-ppm-ag-manufactured-and-tested-in-an-iso-17-rv010659-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_fe5245f9-0d4b-4a3e-875b-320706e7a802.jpg?v=1737683210</image:loc>
      <image:title>VeriSpec Interference Check Solution B 20 ppm Cr, Co, Cu, Mn, Ni, V; 10 ppm As, Cd, Se, Cn; 5 ppm Ag  Manufactured and Tested in an ISO 17 - RV010659-100N</image:title>
      <image:caption>VeriSpec Interference Check Solution B 20 ppm Cr, Co, Cu, Mn, Ni, V; 10 ppm As, Cd, Se, Cn; 5 ppm Ag  Manufactured and Tested in an ISO 17 - RV010659-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-ms-internal-standard-8-10-ppm-li-sc-ge-rh-in-tb-lu-bi-manufactured-and-tested-in-an-iso-17025guide-34-facili-rv010660-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_364e1cfc-a46a-4c91-9407-46cdb3ca2c76.jpg?v=1737683210</image:loc>
      <image:title>VeriSpec ICP-MS Internal Standard 8 10 ppm: ?Li, Sc, Ge, Rh, In, Tb, Lu, Bi 34 Facili - RV010660-100N</image:title>
      <image:caption>VeriSpec ICP-MS Internal Standard 8 10 ppm: ?Li, Sc, Ge, Rh, In, Tb, Lu, Bi 34 Facili - RV010660-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-ms-tuning-solution-6-10-ppm-li-mg-y-ce-tl-co-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010661-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_e691803c-a332-448d-b476-3c855c79f42d.jpg?v=1737683211</image:loc>
      <image:title>VeriSpec ICP-MS Tuning Solution 6 10 ppm: Li, Mg, Y, Ce, Tl, Co  - RV010661-100N</image:title>
      <image:caption>VeriSpec ICP-MS Tuning Solution 6 10 ppm: Li, Mg, Y, Ce, Tl, Co  - RV010661-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-ms-tuning-solution-5-10-ppm-li-y-ce-tl-co-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010662-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_cf641c90-11bf-41ed-87ef-38784eb8a18a.jpg?v=1737683212</image:loc>
      <image:title>VeriSpec ICP-MS Tuning Solution 5 10 ppm: Li, Y, Ce, Tl, Co  - RV010662-100N</image:title>
      <image:caption>VeriSpec ICP-MS Tuning Solution 5 10 ppm: Li, Y, Ce, Tl, Co  - RV010662-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-15-50-ppm-k-5-ppm-al-as-ba-cd-co-cr-cu-mn-mo-ni-pb-se-sr-zn-manufactured-and-tested-in-rv010663-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_9dea43b5-a2c2-4072-a80d-ec1f72fdd2e5.jpg?v=1704981005</image:loc>
      <image:title>VeriSpec Multi-Element Standard 15 50 ppm K; 5 ppm Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested in - RV010663-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 15 50 ppm K; 5 ppm Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested in - RV010663-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-15-50-ppm-k-5-ppm-al-as-ba-cd-co-cr-cu-mn-mo-ni-pb-se-sr-zn-manufactured-and-tested-in-rv010663-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_87c594c9-7165-4817-864d-69583a61f0af.jpg?v=1704981008</image:loc>
      <image:title>VeriSpec Multi-Element Standard 15 50 ppm K; 5 ppm Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested in - RV010663-500N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 15 50 ppm K; 5 ppm Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested in - RV010663-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-ms-tuning-solution-9-10-ppm-ba-be-ce-co-in-mg-pb-th-tl-manufactured-and-tested-in-an-iso-17025guide-34-facili-rv010665-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_46f05f2a-3e3d-4ffd-96a8-37fd419be7ac.jpg?v=1737683213</image:loc>
      <image:title>VeriSpec ICP-MS Tuning Solution 9 10 ppm: Ba, Be, Ce, Co, In, Mg, Pb, Th, Tl 34 Facili - RV010665-100N</image:title>
      <image:caption>VeriSpec ICP-MS Tuning Solution 9 10 ppm: Ba, Be, Ce, Co, In, Mg, Pb, Th, Tl 34 Facili - RV010665-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-icv-standard-7-5000-ppm-ca-mg-k-na-200-ppm-al-ba-100-ppm-fe-60-ppm-sb-50-ppm-co-v-40-ppm-ni-25-ppm-cu-2-rv010666-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_ed226510-563e-4b3c-9248-f65d00895b35.jpg?v=1704981012</image:loc>
      <image:title>VeriSpec QC ICV Standard 7 5000 ppm Ca, Mg, K, Na; 200 ppm Al, Ba; 100 ppm Fe, 60 ppm Sb; 50 ppm Co, V; 40 ppm Ni, 25 ppm Cu, 2 - RV010666-100N</image:title>
      <image:caption>VeriSpec QC ICV Standard 7 5000 ppm Ca, Mg, K, Na; 200 ppm Al, Ba; 100 ppm Fe, 60 ppm Sb; 50 ppm Co, V; 40 ppm Ni, 25 ppm Cu, 2 - RV010666-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-27-100-ppm-al-sb-as-ba-be-b-cd-ca-cr-co-cu-fe-pb-mg-mn-mo-ni-k-se-si-ag-sr-na-t-rv010667-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_3ddab0b8-a3b0-4267-9928-4bf29f78b2fa.jpg?v=1737683214</image:loc>
      <image:title>VeriSpec QC Standard 27 100 ppm: Al, Sb, As, Ba, Be, B, Cd, Ca, Cr, Co, Cu, Fe, Pb, Mg, Mn, Mo, Ni, K, Se, Si, Ag, Sr, Na, T - RV010667-100N</image:title>
      <image:caption>VeriSpec QC Standard 27 100 ppm: Al, Sb, As, Ba, Be, B, Cd, Ca, Cr, Co, Cu, Fe, Pb, Mg, Mn, Mo, Ni, K, Se, Si, Ag, Sr, Na, T - RV010667-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-interference-check-analytes-b1-100-ppm-cd-ni-pb-ag-zn-50-ppm-ba-be-co-cr-cu-mn-v-manufactured-and-tested-in-an-iso-1-rv010668-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_130b1234-a894-48af-bf5d-3b29e5ed550b.jpg?v=1704981016</image:loc>
      <image:title>VeriSpec Interference Check, Analytes B1 100 ppm: Cd, Ni, Pb, Ag, Zn; 50 ppm: Ba, Be, Co, Cr, Cu, Mn, V - RV010668-100N</image:title>
      <image:caption>VeriSpec Interference Check, Analytes B1 100 ppm: Cd, Ni, Pb, Ag, Zn; 50 ppm: Ba, Be, Co, Cr, Cu, Mn, V  Manufactured and Tested in an ISO 1 - RV010668-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-4-5000-ppm-al-ca-mg-2000-ppm-fe-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010669-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_c9a1afc2-8e82-4239-b4f7-0be99e7f8b39.jpg?v=1737683214</image:loc>
      <image:title>VeriSpec Multi-Element Standard 4 5000 ppm: Al, Ca, Mg; 2000 ppm Fe  - RV010669-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 4 5000 ppm: Al, Ca, Mg; 2000 ppm Fe  - RV010669-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-calibration-standard-15-500-ppm-k-50-ppm-al-as-ba-cd-co-cr-cu-mn-mo-ni-pb-se-sr-zn-manufactured-and-tested-i-rv010670-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_827c421c-fb88-42f1-9b9c-a2699cea4119.jpg?v=1737683221</image:loc>
      <image:title>VeriSpec ICP Calibration Standard 15 500 ppm K; 50 ppm Al, AS, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested i - RV010670-100N</image:title>
      <image:caption>VeriSpec ICP Calibration Standard 15 500 ppm K; 50 ppm Al, AS, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested i - RV010670-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-calibration-standard-15-500-ppm-k-50-ppm-al-as-ba-cd-co-cr-cu-mn-mo-ni-pb-se-sr-zn-manufactured-and-tested-i-rv010670-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_602993ab-39e7-4a64-8849-2d2fbc3bbddb.jpg?v=1704981022</image:loc>
      <image:title>VeriSpec ICP Calibration Standard 15 500 ppm K; 50 ppm Al, AS, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested i - RV010670-500N</image:title>
      <image:caption>VeriSpec ICP Calibration Standard 15 500 ppm K; 50 ppm Al, AS, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested i - RV010670-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-calibration-standard-15-5-ppm-al-as-ba-cd-co-cr-cu-mn-mo-ni-pb-se-sr-zn-50-ppm-k-manufactured-and-tested-in-rv010672-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_a8f052d9-f9df-4eb3-b137-a930c27fbba3.jpg?v=1737683222</image:loc>
      <image:title>VeriSpec ICP Calibration Standard 15 5 ppm: Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se Sr, Zn; 50 ppm K  Manufactured and Tested in - RV010672-100N</image:title>
      <image:caption>VeriSpec ICP Calibration Standard 15 5 ppm: Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se Sr, Zn; 50 ppm K  Manufactured and Tested in - RV010672-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-calibration-standard-15-5-ppm-al-as-ba-cd-co-cr-cu-mn-mo-ni-pb-se-sr-zn-50-ppm-k-manufactured-and-tested-in-rv010672-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_dfad5b8b-e14e-48c0-9e0d-12802122fd17.jpg?v=1737683223</image:loc>
      <image:title>VeriSpec ICP Calibration Standard 15 5 ppm: Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se Sr, Zn; 50 ppm K  Manufactured and Tested in - RV010672-500N</image:title>
      <image:caption>VeriSpec ICP Calibration Standard 15 5 ppm: Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se Sr, Zn; 50 ppm K  Manufactured and Tested in - RV010672-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-internal-standard-6-100-ppm-bi-in-li-sc-tb-y-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010674-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_51295769-7d1e-4046-9954-aec29e36fa2b.jpg?v=1737683224</image:loc>
      <image:title>VeriSpec ICP Internal Standard 6 100 ppm: Bi, In, ?Li, Sc, Tb, Y  - RV010674-100N</image:title>
      <image:caption>VeriSpec ICP Internal Standard 6 100 ppm: Bi, In, ?Li, Sc, Tb, Y  - RV010674-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-4-100-ppm-mo-sb-sn-ti-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010675-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_4a372685-da37-4b17-b650-1a66cc2f6dfb.jpg?v=1737683224</image:loc>
      <image:title>VeriSpec Multi-Element Standard 4 100 ppm: Mo, Sb, Sn, Ti  - RV010675-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 4 100 ppm: Mo, Sb, Sn, Ti  - RV010675-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-18-100-ppm-ag-al-as-ba-be-cd-co-cr-cu-mn-ni-pb-se-th-tl-u-v-zn-manufactured-and-tes-rv010676-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_5816101d-5cf2-4e1f-b1ee-541885ce1748.jpg?v=1737683225</image:loc>
      <image:title>VeriSpec Multi-Element Standard 18 100 ppm: Ag, Al, As, Ba, Be, Cd, Co, Cr, Cu, Mn, Ni, Pb, Se, Th, Tl, U, V, Zn  Manufactured and Tes - RV010676-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 18 100 ppm: Ag, Al, As, Ba, Be, Cd, Co, Cr, Cu, Mn, Ni, Pb, Se, Th, Tl, U, V, Zn  Manufactured and Tes - RV010676-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-5-500-ppm-ca-fe-k-mg-na-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010677-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_a6662c9f-65fb-4ae9-aa68-62ed2d741f0c.jpg?v=1704981035</image:loc>
      <image:title>VeriSpec Multi-Element Standard 5 500 ppm: Ca, Fe, K, Mg, Na  - RV010677-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 5 500 ppm: Ca, Fe, K, Mg, Na  - RV010677-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-5-500-ppm-ca-fe-k-mg-na-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010677-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_205a52a8-8c29-4830-af5b-80c1cbb4e26d.jpg?v=1704981037</image:loc>
      <image:title>VeriSpec Multi-Element Standard 5 500 ppm: Ca, Fe, K, Mg, Na  - RV010677-500N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 5 500 ppm: Ca, Fe, K, Mg, Na  - RV010677-500N</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_2198d954-a2a1-4728-a026-a3cfc18327bf.jpg?v=1737683226</image:loc>
      <image:title>VeriSpec ICP-MS Tuning Solution 26 20 ppm: As, Be, Cd, Zn; 10 ppm: Mg, Ni, Pb; 5 ppm Al, Ba, Bi, Co, Cr, Cu, In, ?Li, Lu, Mn, Na, Sc - RV010679-100N</image:title>
      <image:caption>VeriSpec ICP-MS Tuning Solution 26 20 ppm: As, Be, Cd, Zn; 10 ppm: Mg, Ni, Pb; 5 ppm Al, Ba, Bi, Co, Cr, Cu, In, ?Li, Lu, Mn, Na, Sc - RV010679-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-ms-tuning-solution-8-10-ppm-ge-mo-pd-ru-sb-sn-5-ppm-ir-ti-manufactured-and-tested-in-an-iso-17025guide-34-faci-rv010680-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_c77af8a0-a907-40dd-a988-2ad7c0923c03.jpg?v=1737683227</image:loc>
      <image:title>VeriSpec ICP-MS Tuning Solution 8 10 ppm: Ge, Mo, Pd, Ru, Sb, Sn; 5 ppm Ir, Ti 34 Faci - RV010680-100N</image:title>
      <image:caption>VeriSpec ICP-MS Tuning Solution 8 10 ppm: Ge, Mo, Pd, Ru, Sb, Sn; 5 ppm Ir, Ti 34 Faci - RV010680-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-12-10-ppm-b-ge-mo-nb-p-re-s-si-ta-ti-w-zr-manufactured-and-tested-in-an-iso-17025guide-3-rv010681-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_25d2c615-15a8-493f-b7c7-fb8fbd76405e.jpg?v=1737683228</image:loc>
      <image:title>VeriSpec Multi-Element Standard 12 10 ppm: B, Ge, Mo, Nb, P, Re, S, Si, Ta, Ti, W, Zr 3 - RV010681-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 12 10 ppm: B, Ge, Mo, Nb, P, Re, S, Si, Ta, Ti, W, Zr 3 - RV010681-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-17-10-ppm-ce-dy-er-eu-gd-ho-la-lu-nd-pr-sc-sm-tb-th-tm-y-yb-manufactured-and-tested-rv010682-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_aafc5ab5-6606-48a1-9da2-56444d8f6f07.jpg?v=1737683228</image:loc>
      <image:title>VeriSpec Multi-Element Standard 17 10 ppm:  Ce, Dy, Er, Eu, Gd, Ho, La, Lu, Nd, Pr, Sc, Sm, Tb, Th, Tm, Y, Yb  Manufactured and Tested - RV010682-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 17 10 ppm:  Ce, Dy, Er, Eu, Gd, Ho, La, Lu, Nd, Pr, Sc, Sm, Tb, Th, Tm, Y, Yb  Manufactured and Tested - RV010682-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-10-10-ppm-sb-au-hf-ir-pd-pt-rh-ru-te-sn-manufactured-and-tested-in-an-iso-17025guide-34-fa-rv010683-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_58a815f6-5d09-4cc7-a084-fca7414144ec.jpg?v=1737683229</image:loc>
      <image:title>VeriSpec Multi-Element Standard 10 10 ppm: Sb, Au, Hf, Ir, Pd, Pt, Rh, Ru, Te, Sn 34 Fa - RV010683-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 10 10 ppm: Sb, Au, Hf, Ir, Pd, Pt, Rh, Ru, Te, Sn 34 Fa - RV010683-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icv-standard-26-1000-ppm-ca-fe-k-mg-na-sr-10-ppm-ag-al-as-ba-be-cd-co-cr-cu-mn-mo-ni-pb-sb-se-t-rv010684-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_acaeac4e-3ad1-426c-bd70-6cc2860d4509.jpg?v=1704981049</image:loc>
      <image:title>VeriSpec ICV Standard 26 1000 ppm Ca, Fe, K, Mg, Na, Sr; 10 ppm Ag, Al, As, Ba, Be, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Sb, Se, T - RV010684-100N</image:title>
      <image:caption>VeriSpec ICV Standard 26 1000 ppm Ca, Fe, K, Mg, Na, Sr; 10 ppm Ag, Al, As, Ba, Be, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Sb, Se, T - RV010684-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-7-150-ppm-so-po-100-ppm-no-br-no-30-ppm-cl-20-ppm-f-manufactured-and-rv010685-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_d16eac5e-654b-402f-93e3-7b73f7a11326.jpg?v=1737683230</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 7 150 ppm SO?²?, PO?³?; 100 ppm NO??, Br?, NO??; 30 ppm Cl?, 20 ppm F?  Manufactured and - RV010685-100N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 7 150 ppm SO?²?, PO?³?; 100 ppm NO??, Br?, NO??; 30 ppm Cl?, 20 ppm F?  Manufactured and - RV010685-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-7-150-ppm-so-po-100-ppm-no-br-no-30-ppm-cl-20-ppm-f-manufactured-and-rv010685-50n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_4246df0c-d54e-473b-a908-e91780151232.jpg?v=1737683231</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 7 150 ppm SO?²?, PO?³?; 100 ppm NO??, Br?, NO??; 30 ppm Cl?, 20 ppm F?  Manufactured and - RV010685-50N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 7 150 ppm SO?²?, PO?³?; 100 ppm NO??, Br?, NO??; 30 ppm Cl?, 20 ppm F?  Manufactured and - RV010685-50N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-7-200-ppm-po-100-ppm-so-no-br-no-cl-20-ppm-f-manufactured-and-teste-rv010687-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_04daf9e8-86b0-48f3-830a-ea13e87486b8.jpg?v=1704981056</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 7 200 ppm PO?³?; 100 ppm  SO?²?, NO??, Br?, NO??, Cl?; 20 ppm F?  Manufactured and Teste - RV010687-100N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 7 200 ppm PO?³?; 100 ppm  SO?²?, NO??, Br?, NO??, Cl?; 20 ppm F?  Manufactured and Teste - RV010687-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-5-150-ppm-so-po-100-ppm-no-30-ppm-cl-20-ppm-f-manufactured-and-tested-in-an-rv010688-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_e8d1b8e8-b30c-490a-bfbe-51bf4f0be6c2.jpg?v=1737683232</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 5 150 ppm SO?²?, PO?³?; 100 ppm NO??, 30 ppm Cl?, 20 ppm F?  Manufactured and Tested in an - RV010688-100N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 5 150 ppm SO?²?, PO?³?; 100 ppm NO??, 30 ppm Cl?, 20 ppm F?  Manufactured and Tested in an - RV010688-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-cation-standard-6-50-ppm-li-200-ppm-na-k-mg-400-ppm-nh-1000-ppm-ca-manufactured-and-tested-in-rv010689-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_2cd7e990-6cf2-45ea-acf6-c12e8bba2265.jpg?v=1737683232</image:loc>
      <image:title>VeriSpec Mixed Cation Standard 6 50 ppm Li?; 200 ppm Na?, K?, Mg²?; 400 ppm NH??, 1000 ppm Ca²?  Manufactured and Tested in - RV010689-100N</image:title>
      <image:caption>VeriSpec Mixed Cation Standard 6 50 ppm Li?; 200 ppm Na?, K?, Mg²?; 400 ppm NH??, 1000 ppm Ca²?  Manufactured and Tested in - RV010689-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-cation-standard-6-50-ppm-li-200-ppm-na-k-mg-400-ppm-nh-1000-ppm-ca-manufactured-and-tested-in-rv010689-50n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_84295972-38fd-42e5-9e0a-be963473591c.jpg?v=1737683233</image:loc>
      <image:title>VeriSpec Mixed Cation Standard 6 50 ppm Li?; 200 ppm Na?, K?, Mg²?; 400 ppm NH??, 1000 ppm Ca²?  Manufactured and Tested in - RV010689-50N</image:title>
      <image:caption>VeriSpec Mixed Cation Standard 6 50 ppm Li?; 200 ppm Na?, K?, Mg²?; 400 ppm NH??, 1000 ppm Ca²?  Manufactured and Tested in - RV010689-50N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-cation-standard-6-50-ppm-li-na-200-ppm-250-ppm-nh-mg-500-ppm-k-ca-manufactured-and-tested-i-rv010691-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_d745b66b-8ce4-4864-adfc-ef038f3bbbb8.jpg?v=1737683234</image:loc>
      <image:title>VeriSpec Mixed Cation Standard 6 50 ppm Li?, Na? 200 ppm; 250 ppm NH??, Mg²? ; 500 ppm K?, Ca²?  Manufactured and Tested i - RV010691-100N</image:title>
      <image:caption>VeriSpec Mixed Cation Standard 6 50 ppm Li?, Na? 200 ppm; 250 ppm NH??, Mg²? ; 500 ppm K?, Ca²?  Manufactured and Tested i - RV010691-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-5-1500-ppm-k-1000-ppm-pb-500-ppm-al-mg-100-ppm-cd-manufactured-and-tested-in-an-iso-17025guide-rv010692-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_81f2ecc2-f312-47f5-8c90-1c4dcbc66355.jpg?v=1704981066</image:loc>
      <image:title>VeriSpec QC Standard 5 1500 ppm K, 1000 ppm Pb; 500 ppm Al, Mg; 100 ppm Cd - RV010692-100N</image:title>
      <image:caption>VeriSpec QC Standard 5 1500 ppm K, 1000 ppm Pb; 500 ppm Al, Mg; 100 ppm Cd - RV010692-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-5-1500-ppm-k-1000-ppm-pb-500-ppm-al-mg-100-ppm-cd-manufactured-and-tested-in-an-iso-17025guide-rv010692-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_72f4d455-a58f-4007-ab34-b04583e2cdc3.jpg?v=1704981068</image:loc>
      <image:title>VeriSpec QC Standard 5 1500 ppm K, 1000 ppm Pb; 500 ppm Al, Mg; 100 ppm Cd - RV010692-500N</image:title>
      <image:caption>VeriSpec QC Standard 5 1500 ppm K, 1000 ppm Pb; 500 ppm Al, Mg; 100 ppm Cd - RV010692-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-for-chlorineschlorides-10000-mgl-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010694-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_18355f27-644a-4ce0-a4ab-9691253e0edc.jpg?v=1737683235</image:loc>
      <image:title>VeriSpec QC Standard for Chlorines/Chlorides 10,000 mg/L  - RV010694-100N</image:title>
      <image:caption>VeriSpec QC Standard for Chlorines/Chlorides 10,000 mg/L  - RV010694-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-for-chlorineschlorides-10000-mgl-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010694-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_a9ce5320-3567-408b-9dfb-2bcf90e44395.jpg?v=1737683236</image:loc>
      <image:title>VeriSpec QC Standard for Chlorines/Chlorides 10,000 mg/L  - RV010694-500N</image:title>
      <image:caption>VeriSpec QC Standard for Chlorines/Chlorides 10,000 mg/L  - RV010694-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-5-100-ppm-al-cd-k-mg-pb-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010696-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_26500f72-a883-4310-a8d4-c0b4a7f3c657.jpg?v=1704981075</image:loc>
      <image:title>VeriSpec QC Standard 5 100 ppm: Al, Cd, K, Mg, Pb  - RV010696-100N</image:title>
      <image:caption>VeriSpec QC Standard 5 100 ppm: Al, Cd, K, Mg, Pb  - RV010696-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-9-50-ppm-al-as-co-cr-cu-k-na-p-pb-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010697-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_bff65851-e55f-4435-b84c-b00e5ad0cb35.jpg?v=1704981077</image:loc>
      <image:title>VeriSpec QC Standard 9 50 ppm: Al, As, Co, Cr, Cu, K, Na, P, Pb  - RV010697-100N</image:title>
      <image:caption>VeriSpec QC Standard 9 50 ppm: Al, As, Co, Cr, Cu, K, Na, P, Pb  - RV010697-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-9-50-ppm-al-as-co-cr-cu-k-na-p-pb-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010697-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_58170c71-981e-4da0-b984-0ad46cf19ade.jpg?v=1704981079</image:loc>
      <image:title>VeriSpec QC Standard 9 50 ppm: Al, As, Co, Cr, Cu, K, Na, P, Pb  - RV010697-500N</image:title>
      <image:caption>VeriSpec QC Standard 9 50 ppm: Al, As, Co, Cr, Cu, K, Na, P, Pb  - RV010697-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-instrument-check-standard-3-1000-ppm-ba-mg-zn-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010699-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_d124384c-8aac-4139-a756-296d7cfae445.jpg?v=1704981081</image:loc>
      <image:title>VeriSpec Instrument Check Standard 3 1000 ppm: Ba, Mg, Zn  - RV010699-100N</image:title>
      <image:caption>VeriSpec Instrument Check Standard 3 1000 ppm: Ba, Mg, Zn  - RV010699-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-instrument-check-standard-3-1000-ppm-ba-mg-zn-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010699-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_02eb3889-ae1f-47f6-a603-cb3cb04b5608.jpg?v=1704981083</image:loc>
      <image:title>VeriSpec Instrument Check Standard 3 1000 ppm: Ba, Mg, Zn  - RV010699-500N</image:title>
      <image:caption>VeriSpec Instrument Check Standard 3 1000 ppm: Ba, Mg, Zn  - RV010699-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-21-100-ppm-as-be-ca-cd-co-cr-cu-fe-li-mg-mn-mo-ni-pb-sb-se-sr-ti-tl-v-zn-manufac-rv010701-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_9e251b19-7b67-4543-a87d-1b1a60ef408a.jpg?v=1704981086</image:loc>
      <image:title>VeriSpec Multi-Element Standard 21 100 ppm: As, Be, Ca, Cd, Co, Cr, Cu, Fe, Li, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, Tl, V, Zn  Manufac - RV010701-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 21 100 ppm: As, Be, Ca, Cd, Co, Cr, Cu, Fe, Li, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, Tl, V, Zn  Manufac - RV010701-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-7-1000-ppm-k-100-ppm-ag-al-b-ba-na-50-ppm-si-manufactured-and-tested-in-an-iso-17025guide-34-rv010702-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_53edecc1-003a-4687-af40-3d04f5a09f98.jpg?v=1737683237</image:loc>
      <image:title>VeriSpec Multi-Element Standard 7 1000 ppm K; 100 ppm Ag, Al, B, Ba, Na; 50 ppm Si 34 - RV010702-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 7 1000 ppm K; 100 ppm Ag, Al, B, Ba, Na; 50 ppm Si 34 - RV010702-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-23-1000-ppm-ag-al-b-ba-bi-ca-cd-co-cr-cu-fe-ga-in-k-li-mg-mn-na-ni-pb-sr-tl-zn-rv010703-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_690ab8a3-9bb3-4ec6-9b3b-23f157c77058.jpg?v=1704981095</image:loc>
      <image:title>VeriSpec QC Standard 23 1000 ppm: Ag, Al, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, In, K, Li, Mg, Mn, Na, Ni, Pb, Sr, Tl, Zn / - RV010703-100N</image:title>
      <image:caption>VeriSpec QC Standard 23 1000 ppm: Ag, Al, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, In, K, Li, Mg, Mn, Na, Ni, Pb, Sr, Tl, Zn / - RV010703-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-23-1000-ppm-ag-al-b-ba-bi-ca-cd-co-cr-cu-fe-ga-in-k-li-mg-mn-na-ni-pb-sr-tl-zn-rv010703-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_1a553c28-3523-4acb-b1c7-f0421e4c0ab1.jpg?v=1704981097</image:loc>
      <image:title>VeriSpec QC Standard 23 1000 ppm: Ag, Al, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, In, K, Li, Mg, Mn, Na, Ni, Pb, Sr, Tl, Zn / - RV010703-500N</image:title>
      <image:caption>VeriSpec QC Standard 23 1000 ppm: Ag, Al, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, In, K, Li, Mg, Mn, Na, Ni, Pb, Sr, Tl, Zn / - RV010703-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-7-1000-ppm-k-500-ppm-si-100-ppm-al-b-ba-na-50-ppm-ag-manufactured-and-tested-in-an-iso-17025g-rv010705-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_257dffb8-ded4-4f05-ad96-ff37e04a4cc0.jpg?v=1737683237</image:loc>
      <image:title>VeriSpec QC Standard 7 1000 ppm K, 500 ppm Si; 100 ppm Al, B, Ba, Na; 50 ppm Ag  G - RV010705-100N</image:title>
      <image:caption>VeriSpec QC Standard 7 1000 ppm K, 500 ppm Si; 100 ppm Al, B, Ba, Na; 50 ppm Ag  G - RV010705-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-4-5000-ppm-ca-k-mg-na-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010706-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_a55410cc-bbd2-40a8-981b-bc3180acd17a.jpg?v=1737683238</image:loc>
      <image:title>VeriSpec Multi-Element Standard 4 5000 ppm: Ca, K, Mg, Na  - RV010706-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 4 5000 ppm: Ca, K, Mg, Na  - RV010706-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-4-5000-ppm-ca-k-mg-na-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010706-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_61f5faab-7037-45af-b293-66b757cae239.jpg?v=1737683239</image:loc>
      <image:title>VeriSpec Multi-Element Standard 4 5000 ppm: Ca, K, Mg, Na  - RV010706-500N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 4 5000 ppm: Ca, K, Mg, Na  - RV010706-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-heavy-metals-100-ppm-as-tl-50-ppm-cd-se-30-ppm-pb-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010708-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_32a6b138-9cbc-42a5-ad94-aad9a11f15ae.jpg?v=1704981105</image:loc>
      <image:title>VeriSpec Multi-Element Standard, Heavy Metals 100 ppm As, Tl, 50 ppm Cd, Se; 30 ppm Pb  - RV010708-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard, Heavy Metals 100 ppm As, Tl, 50 ppm Cd, Se; 30 ppm Pb  - RV010708-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-calibration-standard-19-400-ppm-tl-200-ppm-bi-in-pb-150-ppm-ga-100-ppm-al-50-ppm-ag-ni-25-ppm-cr-20-ppm-cd-co-cu-rv010709-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_1ed396f4-aa3d-4a76-9b33-04ddbab0ee58.jpg?v=1737683240</image:loc>
      <image:title>VeriSpec ICP Calibration Standard 19 400 ppm Tl; 200 ppm Bi, In, Pb; 150 ppm Ga, 100 ppm Al; 50 ppm Ag, Ni; 25 ppm Cr; 20 ppm Cd, Co, Cu, - RV010709-100N</image:title>
      <image:caption>VeriSpec ICP Calibration Standard 19 400 ppm Tl; 200 ppm Bi, In, Pb; 150 ppm Ga, 100 ppm Al; 50 ppm Ag, Ni; 25 ppm Cr; 20 ppm Cd, Co, Cu, - RV010709-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-3-10000-ppm-k-1000-ppm-na-250-ppm-li-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010710-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_55bcde87-19c3-4d88-841b-8ed39598da53.jpg?v=1704981108</image:loc>
      <image:title>VeriSpec Multi-Element Standard 3 10,000 ppm K, 1000 ppm Na, 250 ppm Li  - RV010710-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 3 10,000 ppm K, 1000 ppm Na, 250 ppm Li  - RV010710-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-calibration-standard-4-1000-ppm-ba-ca-mg-sr-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010711-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_e703440f-5535-4815-ab1d-cd1994aa44ef.jpg?v=1704981110</image:loc>
      <image:title>VeriSpec ICP Calibration Standard 4 1000 ppm: Ba, Ca, Mg, Sr  - RV010711-100N</image:title>
      <image:caption>VeriSpec ICP Calibration Standard 4 1000 ppm: Ba, Ca, Mg, Sr  - RV010711-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-calibration-standard-23-1000-ppm-ag-al-b-ba-bi-ca-cd-co-cr-cu-fe-ga-in-k-li-mg-mn-na-ni-pb-sr-tl-zn-rv010712-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_d7512970-1adf-4f86-b704-8f4eeb3cda01.jpg?v=1704981112</image:loc>
      <image:title>VeriSpec ICP Calibration Standard 23 1000 ppm: Ag, Al, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, In, K, Li, Mg, Mn, Na, Ni, Pb, Sr, Tl, Zn / - RV010712-100N</image:title>
      <image:caption>VeriSpec ICP Calibration Standard 23 1000 ppm: Ag, Al, B, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, In, K, Li, Mg, Mn, Na, Ni, Pb, Sr, Tl, Zn / - RV010712-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-30-1000-ppm-ca-100-ppm-as-b-be-fe-se-zn-10-ppm-ag-al-ba-bi-cd-co-cr-cu-ga-k-li-mg-mn-rv010713-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_4d94bc50-6607-4cb1-980a-d3271b9019ed.jpg?v=1737683241</image:loc>
      <image:title>VeriSpec Multi-Element Standard 30 1000 ppm Ca; 100 ppm As, B, Be, Fe, Se, Zn; 10 ppm Ag, Al, Ba, Bi, Cd, Co, Cr, Cu, Ga, K, Li, Mg, Mn - RV010713-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 30 1000 ppm Ca; 100 ppm As, B, Be, Fe, Se, Zn; 10 ppm Ag, Al, Ba, Bi, Cd, Co, Cr, Cu, Ga, K, Li, Mg, Mn - RV010713-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-24-100-ppm-al-b-ba-be-bi-ca-cd-co-cr-cu-fe-ga-k-li-mg-mn-na-ni-pb-se-sr-te-tl-zn-rv010714-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_8a3a35d6-368d-488e-9df4-e19a02f5f1a3.jpg?v=1737683241</image:loc>
      <image:title>VeriSpec Multi-Element Standard 24 100 ppm Al, B, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, K, Li, Mg, Mn, Na, Ni, Pb, Se, Sr, Te, Tl, Zn - RV010714-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 24 100 ppm Al, B, Ba, Be, Bi, Ca, Cd, Co, Cr, Cu, Fe, Ga, K, Li, Mg, Mn, Na, Ni, Pb, Se, Sr, Te, Tl, Zn - RV010714-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-9-100-ppm-as-be-pb-cd-cr-ni-hg-se-tl-manufactured-and-tested-in-an-iso-17025guide-34-facil-rv010715-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_c8120f37-ba87-422a-88fa-2bf8a528b3d2.jpg?v=1737683242</image:loc>
      <image:title>VeriSpec Multi-Element Standard 9 100 ppm: As, Be, Pb, Cd, Cr, Ni, Hg, Se, Tl 34 Facil - RV010715-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 9 100 ppm: As, Be, Pb, Cd, Cr, Ni, Hg, Se, Tl 34 Facil - RV010715-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-23-15k-ppm-mg-8k-ppm-na-35k-ppm-ca-3000-ppm-k-100-ppb-b-fe-mo-sr-50-ppb-as-ba-ni-v-zn-30-rv010716-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_298926e2-a72c-4fce-81ab-8dfbb17f4e0c.jpg?v=1737683243</image:loc>
      <image:title>VeriSpec Multi-Element Standard 23 15K ppm Mg, 8K ppm Na, 3.5K ppm Ca, 3000 ppm K; 100 ppb B, Fe, Mo, Sr; 50 ppb As, Ba, Ni, V, Zn; 30 - RV010716-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 23 15K ppm Mg, 8K ppm Na, 3.5K ppm Ca, 3000 ppm K; 100 ppb B, Fe, Mo, Sr; 50 ppb As, Ba, Ni, V, Zn; 30 - RV010716-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-7-2500-ppm-zn-900-ppm-cr-pb-800-ppm-cu-10-ppm-cd-8-ppm-hg-manufactured-and-tested-in-an-iso-170-rv010717-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_3cb0399b-bce1-49a7-bff4-40bcc1533b3e.jpg?v=1737683244</image:loc>
      <image:title>VeriSpec Multi-Element Standard 7 2500 ppm Zn; 900 ppm Cr, Pb; 800 ppm Cu, 10 ppm Cd, 8 ppm Hg  Manufactured and Tested in an ISO 170 - RV010717-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 7 2500 ppm Zn; 900 ppm Cr, Pb; 800 ppm Cu, 10 ppm Cd, 8 ppm Hg  Manufactured and Tested in an ISO 170 - RV010717-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-8-1000-ppm-as-mo-p-s-si-w-v-zr-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010718-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_6ed919f8-9b37-456b-84a7-2bad4d2a969d.jpg?v=1704981123</image:loc>
      <image:title>VeriSpec Multi-Element Standard 8 1000 ppm: As, Mo, P, S, Si, W, V, Zr  - RV010718-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 8 1000 ppm: As, Mo, P, S, Si, W, V, Zr  - RV010718-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-trace-metals-calibration-standard-500-ppm-al-250-ppm-v-100-ppm-as-be-co-cr-cu-fe-mn-ni-pb-zn-25-ppm-cd-se-5ppm-hg-manu-rv010719-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_94fb86f4-e8c1-471c-ba05-751f510c2c1e.jpg?v=1737683245</image:loc>
      <image:title>VeriSpec Trace Metals Calibration Standard 500 ppm Al, 250 ppm V; 100 ppm As, Be, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn; 25 ppm Cd, Se; 5ppm Hg  Manu - RV010719-100N</image:title>
      <image:caption>VeriSpec Trace Metals Calibration Standard 500 ppm Al, 250 ppm V; 100 ppm As, Be, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn; 25 ppm Cd, Se; 5ppm Hg  Manu - RV010719-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-11-100-ppm-s-k-p-20-ppm-as-na-sc-li-ni-mn-la-mo-manufactured-and-tested-in-an-iso-17025g-rv010720-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_bed33272-d6e3-466e-acd6-1d3ec5fcd6f0.jpg?v=1704981127</image:loc>
      <image:title>VeriSpec Multi-Element Standard 11 100 ppm: S, K, P; 20 ppm: As, Na, Sc, Li, Ni, Mn, La, Mo  G - RV010720-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 11 100 ppm: S, K, P; 20 ppm: As, Na, Sc, Li, Ni, Mn, La, Mo  G - RV010720-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-11-100-ppm-s-k-p-20-ppm-as-na-sc-li-ni-mn-la-mo-manufactured-and-tested-in-an-iso-17025g-rv010720-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_8425efa5-7bda-45bb-a558-c3ec20572286.jpg?v=1704981129</image:loc>
      <image:title>VeriSpec Multi-Element Standard 11 100 ppm: S, K, P; 20 ppm: As, Na, Sc, Li, Ni, Mn, La, Mo  G - RV010720-500N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 11 100 ppm: S, K, P; 20 ppm: As, Na, Sc, Li, Ni, Mn, La, Mo  G - RV010720-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-8-50-ppm-k-10-ppm-la-li-mn-na-sr-1-ppm-ba-ca-manufactured-and-tested-in-an-iso-17025guide-34-rv010722-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_352adfe8-cabe-4a1d-8471-8136ae0d8d08.jpg?v=1737683245</image:loc>
      <image:title>VeriSpec Multi-Element Standard 8 50 ppm K; 10 ppm La, Li, Mn, Na, Sr; 1 ppm Ba, Ca 34 - RV010722-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 8 50 ppm K; 10 ppm La, Li, Mn, Na, Sr; 1 ppm Ba, Ca 34 - RV010722-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-8-50-ppm-k-10-ppm-la-li-mn-na-sr-1-ppm-ba-ca-manufactured-and-tested-in-an-iso-17025guide-34-rv010722-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_093eb9ad-2d5b-4603-9a74-b237c31d75a0.jpg?v=1704981133</image:loc>
      <image:title>VeriSpec Multi-Element Standard 8 50 ppm K; 10 ppm La, Li, Mn, Na, Sr; 1 ppm Ba, Ca 34 - RV010722-500N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 8 50 ppm K; 10 ppm La, Li, Mn, Na, Sr; 1 ppm Ba, Ca 34 - RV010722-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-qc-standard-21-100-ppm-as-be-ca-cd-co-cr-cu-fe-li-mg-mn-mo-ni-pb-sb-se-sr-ti-tl-v-zn-manufac-rv010724-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_41d06f6e-8851-4283-a58f-e4e332adb094.jpg?v=1737683246</image:loc>
      <image:title>VeriSpec QC Standard 21 100 ppm: As, Be, Ca, Cd, Co, Cr, Cu, Fe, Li, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, Tl, V, Zn  Manufac - RV010724-100N</image:title>
      <image:caption>VeriSpec QC Standard 21 100 ppm: As, Be, Ca, Cd, Co, Cr, Cu, Fe, Li, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, Tl, V, Zn  Manufac - RV010724-100N</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_73e70c34-031b-46fc-befa-e8c58b66e220.jpg?v=1737683247</image:loc>
      <image:title>VeriSpec ICP Calibration Standard 7 100 ppm: Hf, Ir, Sb, Sn, Ta, Ti, Zr  - RV010725-100N</image:title>
      <image:caption>VeriSpec ICP Calibration Standard 7 100 ppm: Hf, Ir, Sb, Sn, Ta, Ti, Zr  - RV010725-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-gfaa-multi-element-standard-16-100-ppm-al-as-pb-sb-se-tl-50-ppm-ba-co-cu-ni-20-ppm-cr-fe-mn-10-ppm-al-5-ppm-be-cd-rv010726-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_6dfba7eb-0017-4069-ad5e-6f822f972044.jpg?v=1737683248</image:loc>
      <image:title>VeriSpec GFAA Multi-Element Standard 16 100 ppm: Al, As, Pb, Sb, Se, Tl; 50 ppm: Ba, Co, Cu, Ni; 20 ppm Cr, Fe, mn; 10 ppm Al; 5 ppm Be, Cd - RV010726-100N</image:title>
      <image:caption>VeriSpec GFAA Multi-Element Standard 16 100 ppm: Al, As, Pb, Sb, Se, Tl; 50 ppm: Ba, Co, Cu, Ni; 20 ppm Cr, Fe, mn; 10 ppm Al; 5 ppm Be, Cd - RV010726-100N</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-tuning-solution-15-500-ppm-k-50-ppm-al-as-ba-cd-co-cr-cu-mn-mo-ni-pb-se-sr-zn-manufactured-and-tested-rv010727-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_31b0d186-8b52-44bd-ad5d-7014f98e501d.jpg?v=1737683249</image:loc>
      <image:title>VeriSpec ICP Tuning Solution 15 500 ppm: K; 50 ppm: Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested - RV010727-100N</image:title>
      <image:caption>VeriSpec ICP Tuning Solution 15 500 ppm: K; 50 ppm: Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested - RV010727-100N</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-tuning-solution-15-500-ppm-k-50-ppm-al-as-ba-cd-co-cr-cu-mn-mo-ni-pb-se-sr-zn-manufactured-and-tested-rv010727-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_84b90bb6-e26b-4249-9c4a-0a1e28a51d37.jpg?v=1737683249</image:loc>
      <image:title>VeriSpec ICP Tuning Solution 15 500 ppm: K; 50 ppm: Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested - RV010727-500N</image:title>
      <image:caption>VeriSpec ICP Tuning Solution 15 500 ppm: K; 50 ppm: Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn  Manufactured and Tested - RV010727-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-26-100-ppm-k-20-ppm-al-as-na-pb-se-te-10-ppm-ca-p-5-ppm-hg-ni-2-ppm-b-ba-cd-cr-cu-fe-rv010729-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_baa8ffcf-e217-4d66-9a81-b8d0b1a1389e.jpg?v=1704981144</image:loc>
      <image:title>VeriSpec Multi-Element Standard 26 100 ppm K; 20 ppm Al, As, Na, Pb, Se, Te; 10 ppm: Ca, P; 5 ppm Hg, Ni; 2 ppm B, Ba, Cd, Cr, Cu, Fe, - RV010729-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 26 100 ppm K; 20 ppm Al, As, Na, Pb, Se, Te; 10 ppm: Ca, P; 5 ppm Hg, Ni; 2 ppm B, Ba, Cd, Cr, Cu, Fe, - RV010729-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-cation-standard-9-100-ppm-ba-ca-k-li-mg-mn-na-nh-sr-manufactured-and-tested-in-rv010730-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_4171d7d9-fdb8-4444-8f16-062d6ec41fac.jpg?v=1737683250</image:loc>
      <image:title>VeriSpec Mixed Cation Standard 9 100 ppm Ba²?, Ca²?, K?, Li?, Mg²?, Mn²?, Na?, NH??, Sr²?  Manufactured and Tested in - RV010730-100N</image:title>
      <image:caption>VeriSpec Mixed Cation Standard 9 100 ppm Ba²?, Ca²?, K?, Li?, Mg²?, Mn²?, Na?, NH??, Sr²?  Manufactured and Tested in - RV010730-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-detection-limit-standard-5-10-ppb-be-co-in-tl-u-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010731-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_e07db917-4f2a-494b-969b-16ba7a0da1df.jpg?v=1704981147</image:loc>
      <image:title>VeriSpec Detection Limit Standard 5 10 ppb: Be, Co, In, Tl, U  - RV010731-100N</image:title>
      <image:caption>VeriSpec Detection Limit Standard 5 10 ppb: Be, Co, In, Tl, U  - RV010731-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-5-200-ppb-cd-cu-mg-pb-rh-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010732-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_52c9ab30-67bc-4c14-931d-7b610f76e872.jpg?v=1704981149</image:loc>
      <image:title>VeriSpec Multi-Element Standard 5 200 ppb: Cd, Cu, Mg, Pb, Rh  - RV010732-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 5 200 ppb: Cd, Cu, Mg, Pb, Rh  - RV010732-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-icp-ms-calibration-standard-29-10-ppm-ag-al-as-ba-be-bi-ca-cd-co-cr-cs-cu-fe-ga-in-k-li-mg-mn-na-ni-pb-rb-s-rv010733-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_59b7c73c-df8e-4e52-b3c6-22ace84e7b7f.jpg?v=1737683251</image:loc>
      <image:title>VeriSpec ICP-MS Calibration Standard 29 10 ppm: Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr, Cs, Cu, Fe, Ga, In, K, Li, Mg, Mn, Na, Ni, Pb, Rb, S - RV010733-100N</image:title>
      <image:caption>VeriSpec ICP-MS Calibration Standard 29 10 ppm: Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr, Cs, Cu, Fe, Ga, In, K, Li, Mg, Mn, Na, Ni, Pb, Rb, S - RV010733-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-11-10-ppb-ba-ce-ge-mg-sc-tl-cd-cu-pb-rh-tb-manufactured-and-tested-in-an-iso-17025guide-3-rv010734-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_88652718-c9b7-4d39-9d3b-5f174371c397.jpg?v=1704981153</image:loc>
      <image:title>VeriSpec Multi-Element Standard 11 10 ppb: Ba, Ce, Ge, Mg, Sc, Tl, Cd, Cu, Pb, Rh, Tb 3 - RV010734-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 11 10 ppb: Ba, Ce, Ge, Mg, Sc, Tl, Cd, Cu, Pb, Rh, Tb 3 - RV010734-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-11-10-ppb-ba-ce-ge-mg-sc-tl-cd-cu-pb-rh-tb-manufactured-and-tested-in-an-iso-17025guide-3-rv010734-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_6d826f2f-5c0a-461e-816c-da7abfe311a8.jpg?v=1704981154</image:loc>
      <image:title>VeriSpec Multi-Element Standard 11 10 ppb: Ba, Ce, Ge, Mg, Sc, Tl, Cd, Cu, Pb, Rh, Tb 3 - RV010734-500N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 11 10 ppb: Ba, Ce, Ge, Mg, Sc, Tl, Cd, Cu, Pb, Rh, Tb 3 - RV010734-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-15-1-ppb-b-ba-co-fe-ga-in-k-li-lu-na-rh-sc-tl-u-y-manufactured-and-tested-in-an-iso-17-rv010736-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_a96c63bd-7377-4c1a-9f91-8fa902fde61c.jpg?v=1704981156</image:loc>
      <image:title>VeriSpec Multi-Element Standard 15 1 ppb: B, Ba, Co, Fe, Ga, In, K, Li, Lu, Na, Rh, Sc, Tl, U, Y  Manufactured and Tested in an ISO 17 - RV010736-100N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 15 1 ppb: B, Ba, Co, Fe, Ga, In, K, Li, Lu, Na, Rh, Sc, Tl, U, Y  Manufactured and Tested in an ISO 17 - RV010736-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-multi-element-standard-15-1-ppb-b-ba-co-fe-ga-in-k-li-lu-na-rh-sc-tl-u-y-manufactured-and-tested-in-an-iso-17-rv010736-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_741ff472-c414-46e2-ba6b-8cf1dc5e657b.jpg?v=1704981158</image:loc>
      <image:title>VeriSpec Multi-Element Standard 15 1 ppb: B, Ba, Co, Fe, Ga, In, K, Li, Lu, Na, Rh, Sc, Tl, U, Y  Manufactured and Tested in an ISO 17 - RV010736-500N</image:title>
      <image:caption>VeriSpec Multi-Element Standard 15 1 ppb: B, Ba, Co, Fe, Ga, In, K, Li, Lu, Na, Rh, Sc, Tl, U, Y  Manufactured and Tested in an ISO 17 - RV010736-500N</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-7-2-ppm-f-10-ppm-po-no-br-so-5ppm-cl-no-manufactured-and-tested-in-a-rv010738-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_17e27707-aba5-4518-9bea-91703f8b9b1e.jpg?v=1737683252</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 7 2 ppm F?, 10 ppm PO?³?, NO??, Br?, SO?²?, 5ppm Cl?, NO??  Manufactured and Tested in a - RV010738-100N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 7 2 ppm F?, 10 ppm PO?³?, NO??, Br?, SO?²?, 5ppm Cl?, NO??  Manufactured and Tested in a - RV010738-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-7-2-ppm-f-10-ppm-po-no-br-so-5ppm-cl-no-manufactured-and-tested-in-a-rv010739-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_f4a4e9b1-c908-49f2-aae0-27a331f3e729.jpg?v=1737683252</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 7 2 ppm F?, 10 ppm PO?³?, NO??, Br?, SO?²?, 5ppm Cl?, NO??  Manufactured and Tested in a - RV010739-100N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 7 2 ppm F?, 10 ppm PO?³?, NO??, Br?, SO?²?, 5ppm Cl?, NO??  Manufactured and Tested in a - RV010739-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-7-05-ppm-f-po-1-ppm-no-no-br-125-ppm-so-cl-manufactured-and-test-rv010740-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_820aa3e7-c521-4909-ac9e-553a59c66654.jpg?v=1737683253</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 7 0.5 ppm F?, PO?³?; 1 ppm  NO??,  NO??, Br?; 12.5 ppm SO?²?, Cl?  Manufactured and Test - RV010740-100N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 7 0.5 ppm F?, PO?³?; 1 ppm  NO??,  NO??, Br?; 12.5 ppm SO?²?, Cl?  Manufactured and Test - RV010740-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-7-100-ppm-f-po-no-no-br-so-cl-manufactured-and-tested-in-an-iso-17-rv010741-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_f49ce5e6-e062-4ee7-b64b-2baeff197c16.jpg?v=1737683254</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 7 100 ppm: F?, PO?³?, NO??,  NO??, Br?, SO?²?, Cl?  Manufactured and Tested in an ISO 17 - RV010741-100N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 7 100 ppm: F?, PO?³?, NO??,  NO??, Br?, SO?²?, Cl?  Manufactured and Tested in an ISO 17 - RV010741-100N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-7-01-ppm-f-po-no-no-br-so-cl-manufactured-and-tested-in-an-iso-17-rv010742-100n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_d79b372c-fc23-4ec5-80dd-27835840c394.jpg?v=1704981167</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 7 0.1 ppm: F?, PO?³?, NO??,  NO??, Br?, SO?²?, Cl?  Manufactured and Tested in an ISO 17 - RV010742-100N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 7 0.1 ppm: F?, PO?³?, NO??,  NO??, Br?, SO?²?, Cl?  Manufactured and Tested in an ISO 17 - RV010742-100N</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-2-05-ppm-cl-so-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010743-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_cbf270a1-3c6d-4566-ba38-3c34bfff434d.jpg?v=1704981169</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 2 0.5 ppm Cl?, SO?²?  - RV010743-500N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 2 0.5 ppm Cl?, SO?²?  - RV010743-500N</image:caption>
    </image:image>
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  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-2-2-ppm-cl-so-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010745-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_39c95d06-5620-45eb-8c06-b1e5dba82da6.jpg?v=1704981173</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 2 2 ppm Cl?, SO?²?  - RV010745-500N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 2 2 ppm Cl?, SO?²?  - RV010745-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc.myshopify.com/products/verispec-mixed-anion-standard-2-25-ppm-cl-so-manufactured-and-tested-in-an-iso-17025guide-34-facility-rv010746-500n</loc>
    <lastmod>2026-07-27T13:46:55-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0401/5452/9953/products/ricca-verispec_bottles_1_80b4460b-3cb6-4e47-b709-042cb6ae5926.jpg?v=1704981175</image:loc>
      <image:title>VeriSpec Mixed Anion Standard 2 2.5 ppm Cl?, SO?²?  - RV010746-500N</image:title>
      <image:caption>VeriSpec Mixed Anion Standard 2 2.5 ppm Cl?, SO?²?  - RV010746-500N</image:caption>
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