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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

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Explore our full range of analytical and microbiology reference materials.

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9,169 Items found

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  • Top rated
SKU: CLPB2-1AM

LEAD ICP/ICPMS STD IN 2% HNO3 10PPM (30 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 10PPM
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
  • Top rated
SKU: CLP9-1BY

Phosphorus, 1 µg/mL (1 ppm) for ICP-MS (125 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 1 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
  • Top rated
SKU: CLP90-SURR

Alternate Combination Surrogates for CLP SOW

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  • Brand Spex
  • Matrix Methylene Chloride:Acetone
  • Concentration 1,500 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: CLP90-SBH5

High Concentration Base/Neutral Surrogate Standards, 5,000 µg/mL (5 mL)

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  • Brand Spex
  • Matrix Methylene Chloride:Acetone:Benzene
  • Concentration 5,000 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: CLP90-SB5

Base/Neutral Surrogate Standards, 1,000 µg/mL (5 mL)

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  • Brand Spex
  • Matrix Methylene Chloride:Acetone
  • Concentration 1,000 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: CLP90-75SA5

High Concentration Acid Surrogates, 7,500 µg/mL (5 mL)

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  • Brand Spex
  • Matrix Methanol
  • Concentration 7,500 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
SKU: CLN-SOIL

Clean Soil Certified Reference Material

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  • Brand Spex
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Raw Material >95% min; as available
  • Top rated
SKU: CLNI2-2Y

Nickel, 1,000 µg/mL (1,000 ppm) for ICP-MS (125 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
  • Top rated
SKU: CLNI2-2M

Claritas PPT® Nickel, 1,000 µg/mL (1,000 ppm) for ICP-MS (30 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
  • Top rated
SKU: CLNI2-1BY

Nickel, 1 µg/mL (1 ppm) for ICP-MS (125 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 1 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
  • Top rated
SKU: CLNI2-1AY

NICKEL ICP/ICPMS STD IN 2% HNO 10PPM (125 mL)

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  • Brand Spex
  • Matrix 2% HNO
  • Concentration 10PPM
  • 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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