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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: 531-I-PK

Internal Std/Surrogate for US EPA Method 531, 100 µg/mL (4 x 1 mL)

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  • Brand Spex
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SKU: 5311-A10

Method 531 Analyte Mix A, 100 µg/mL

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  • Brand Spex
  • Matrix HPLC Acetonitrile
  • Concentration 100 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
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SKU: 53080-M

2,4-Dichlorophenoxy-butyric acid

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 52910-M

Fonophos (Dyfonate)

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 52910-HA

Fonophos (Dyfonate)

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 52900-HA

Chlorpyrifos

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 52900-A

Chlorpyrifos

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 527-A

1,3-Dinitrobenzene

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 5252-S-PK

Surrogate Standard for US EPA 525, 500 µg/mL in Acetone (4 x 1 mL)

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  • Brand Spex
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SKU: 5252-PCS-PK

Performance Check Solution for EPA Method 525, 500µg/mL (4 x 1 mL)

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  • Brand Spex
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SKU: 5252-PB

Organochlorine Pesticides Mix B, 200 µg/mL

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  • Brand Spex
  • Matrix Acetone
  • Concentration 200 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
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SKU: 5252-PA

Organochlorine Pesticides Mix A, 200 µg/mL

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  • Brand Spex
  • Matrix Acetone
  • Concentration 200 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
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