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Analytical Reference Material

Organic, Inorganic, Microbiology & PT Reference Materials

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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9,408 Items found

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SKU: 24121-83

MicroPrefs® Polycarbonate tablet (50-300 µm); 50-70 particles in excipient; 1 x tablet; 15251.X-50/300-TAB

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  • Brand Chiron
  • Concentration 50-70 particles
  • Matrix Excipient
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SKU: 24121-86

MicroPrefs® Tablet: Mix of PE, PET, PS (50-300 µm); 50-300 µm, 70-100 particles/tab: 1 x tablet; S-5401-50/300-TAB

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  • Brand Chiron
  • Concentration 50-300 µm, 70-100 particles/tab
  • Matrix NaHCO3/Citric acid/Lactose
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SKU: 24121-89

MicroPrefs® Tablet: Mix of PP, PVC, PC (50-300 µm); 50-300 µm, 70-100 particles/tab: 1 x tablet; S-5402-50/300-TAB

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  • Brand Chiron
  • Concentration 50-300 µm, 70-100 particles/tab
  • Matrix NaHCO3/Citric acid/Lactose
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SKU: 24121-94

MicroPrefs® Polystyrene (50-300 µm); neat

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  • Brand Chiron
  • Concentration neat
  • Matrix Neat
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  • New
SKU: CRM-5481-1-ME

PFAS EPA Method 533 Mix, 1 µg/mL in methanol with 4 mol eq. NaOH, 1 mL

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  • Brand Chiron
  • Certification Grav. &/or Volume w/Analytical Confirmation
  • Concentration 1 µg/mL
  • Matrix Methanol with 4 mol eq. NaOH
  • Raw Material min. 95% purity
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  • New
SKU: CRM-5482-2-ME

PFAS EPA Method 537 Mix, 2 µg/mL in methanol with 4 mol eq. NaOH, 1 mL

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  • Brand Chiron
  • Certification Grav. &/or Volume w/Analytical Confirmation
  • Concentration 2 µg/mL
  • Matrix Methanol with 4 mol eq. NaOH
  • Raw Material min. 95% purity
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  • New
SKU: CRM-5484-ASS-ME

PFAS EPA Method 1633 Mix, in methanol with 4 mol eq. NaOH, 1 mL

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  • Brand Chiron
  • Certification Grav. &/or Volume w/Analytical Confirmation
  • Concentration Assorted
  • Matrix Methanol with 4 mol eq. NaOH
  • Raw Material min. 95% purity
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  • New
SKU: CRM-5483-20-ME

PFAS EPA NPDWR2024 Mix, 20 µg/mL in methanol with 4 mol eq. NaOH, 1 mL

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  • Brand Chiron
  • Certification Grav. &/or Volume w/Analytical Confirmation
  • Concentration 20 µg/mL
  • Matrix Methanol with 4 mol eq. NaOH
  • Raw Material min. 95% purity
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SKU: CLHG4-2Y

Claritas PPT® Mercury, 1,000 µg/mL (1,000 ppm) for ICP-MS (125 mL)

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  • Brand Spex
  • Matrix 10% HNO3
  • Concentration 1000 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
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SKU: CLHG4-2M

Mercury, 1,000 µg/mL (1,000 ppm) for ICP-MS (30 mL)

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  • Brand Spex
  • Matrix 10% HNO3
  • Concentration 1000 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
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SKU: CLHG2-1AY

Mercury, 10 µg/mL (10 ppm) for ICP-MS (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 10 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
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  • Top rated
SKU: CLHG2-1AM

Mercury, 10 µg/mL (10 ppm) for ICP-MS (30 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 10 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
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