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Explore the broadest selection of analytical reference materials and proficiency testing (PT) from the leading brands in certified and analytical reference materials: Spex, NSI, HPS, and Chiron.

Our harmonized product development and custom capabilities are tailored to bring you innovative products to help meet your unique application needs.

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5,992 Items found

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  • KIT
SKU: INTER-SETN

Assurance® Interference Check Standards without Mercury for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix Multiple
  • Concentration 6,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
SKU: INTER-SET

Assurance® Interference Check Standards with Mercury for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix Multiple
  • Concentration 6,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INTER5-500

Assurance® Interference Check Standard 5 for AA & ICP (500 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 6,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INTER5-100

Assurance® Interference Check Standard 5 for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 6,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INTER18-500N

Assurance® Interference Check Standard 18 without Mercury for AA & ICP (500 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 20,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
SKU: INTER18-500

Assurance® Interference Check Standard 18 with Mercury for AA & ICP (500 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 20,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INTER18-100N

Assurance® Interference Check Standard 18 without Mercury for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 20,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
SKU: INTER18-100

Assurance® Interference Check Standard 18 with Mercury for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 20,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
SKU: ICP-KIT-1

Assurance® ICP Standards Kit, 1,000 µg/mL for AA and ICP

  • CCL
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  • Brand Spex
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
  • Concentration 1,000 µg/mL
  • Matrix Silver, Aluminum, Arsenic, Barium, Beryllium, Calcium, Cadmium, Cobalt, Chromium, Copper, Iron, Potassium, Lithium, Magnesium, Manganese, Sodium, Nickel, Lead, Scandium, Selenium, Strontium, Thallium, Vanadium, Yttrium, Zinc, Zirconium in 2% HNO3 - Bismuth, Mercury in 10% HNO3 - Tin in 20% HCl - Boron, Molybdenum, Phosphorus, Sulfur, Tungsten in H2O - Antimony in H2O, 0.6% tartaric acid, and tr. HNO3 - Titanium in H2O and 0.24% F(-) - Niobium, Silicon in H2O and 0.4% F(-)
  • Measured Impurities 68 elements to ppm (product)
  • Raw Material Five 9s & Purification as available
  • Top rated
  • KIT
SKU: EPA-SETN

Assurance® Environmental EPA Set without Mercury for AA & ICP (125 mL)

  • CCL
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  • Brand Spex
  • Matrix Multiple
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
SKU: EPA-SET

Assurance® Environmental EPA Set with Mercury for AA & ICP (125 mL)

  • CCL
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  • Brand Spex
  • Matrix Multiple
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: EP-8N

Assurance® Primary Drinking Water Metals without Mercury for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 100 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
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