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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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9,385 Items found

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SKU: 51-00053

A. brasiliensis NCPF 2275

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: 51-0001k

USP 51 Sample Kit

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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SKU: 50922-A

Butachlor

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 5081-PC

Performance Check Solution

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  • Brand Spex
  • Matrix Methyl Tertiary-Butyl Ether:Ethyl Acetate
  • Concentration 40 ng/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
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SKU: 50760-M

Acifluorofen

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 505-A2-PK

Organochloride Pesticides Mix for US EPA Method 505 (4 x 1 mL)

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  • Brand NSI
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SKU: 504-AH-PK

EDB/DBCP Analytes Mix (High Level), 2000 µg/mL (4 x 1 mL)

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  • Brand NSI
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SKU: 50425-M

Bentazon

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 50360-HA

Monocrotophos

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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  • Top rated
SKU: 5022-BH

Purgeable Gases Mix B (High Level), 2,000 µg/mL

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  • Brand Spex
  • Matrix Methanol-P&T
  • Concentration 2,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
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  • Top rated
SKU: 5022-B

Purgeable Gases Mix B, 200 µg/mL

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  • Brand Spex
  • Matrix Methanol-P&T
  • Concentration 200 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
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SKU: 499H

Isosafrole

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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