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High-Quality Analytical Reference Materials Spex | NSI | HPS | Chiron

Precision & Accuracy for Every Analysis

Ensure the highest confidence in your laboratory results with high-quality reference materials from industry-leading brands: Spex, NSI, HPS, and Chiron. Our extensive selection supports environmental, food safety, pharmaceutical, toxicology, cannabis, and industrial testing.

Our Reference Materials Include:

  • Inorganic Standards – Trace metals, ICP, ICP-MS, AAS, and wet chemistry solutions
  • Organic Standards – Pesticides, PCBs, PAHs, VOCs, SVOCs, and more
  • Microbiology Standards – Quantitative and qualitative reference materials for pathogen detection, sterility testing, and microbial analysis
  • Proficiency Testing (PT) Samples – Validate accuracy with external quality controls
  • Custom Standards – Tailored solutions to meet your lab’s specific needs – Fill out your custom request today!

Why Choose Us?

  • ISO 17034 & ISO 17025 Accreditation – Certified for reliability and traceability
  • Compliance with EPA, AOAC, ASTM, ISO, and other global regulations
  • High-Purity Materials – Ensuring precision in every analysis
  • Expert Support – Technical assistance to optimize your testing process

Get Started Today

Explore our full range of analytical and microbiology reference materials.

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9,268 Items found

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SKU: MM-9042

5% NH4NO3 Matrix Modifier for GFAAS in H2O

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  • Brand HPS
  • Matrix H2O
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9040

Matrix Modifier for GFAAS in H2O 0.1% NH4NO3

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  • Brand HPS
  • Matrix H2O
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9032

Matrix Modifier for GFAAS in 1% HNO3 5% Ni(NO3)2

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  • Brand HPS
  • Matrix 1% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9031

1% Ni(NO3)2 Matrix Modifier for GFAAS in 1% HNO3

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  • Brand HPS
  • Matrix 1% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9012

5% Mg(NO3)2 Matrix Modifier for GFAAS in 1% HNO3 (250 mL)

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  • Brand HPS
  • Matrix 1% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9011

1% Mg(NO3)2 Matrix Modifier for GFAAS in 1% HNO3 (250 mL)

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  • Brand HPS
  • Matrix 1% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9004

20% NH4H2PO4 Matrix Modifier for GFAAS in 0.05% HNO3

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  • Brand HPS
  • Matrix 0.05% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9003

Matrix Modifier for GFAAS in 0.05% HNO3 10% NH4H2PO4

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  • Brand HPS
  • Matrix 0.5% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9002-1

1% NH4H2PO4 Matrix Modifier for GFAAS in 0.05% HNO3

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  • Brand HPS
  • Matrix 0.05% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: SQCI-014B

Flash Point – Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: SQCI-014

Flash Point

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: SQCI-013B

Reactive Cyanide – Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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