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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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9,169 Items found

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  • Top rated
SKU: AS-NO29-2Y

Nitrite (NO2)- Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix Water
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
  • Top rated
SKU: AS-NO29-2X

Nitrite (NO2)- Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (500 mL)

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  • Brand Spex
  • Matrix Water
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
  • Top rated
SKU: AS-NH3N9-2Y

Ammonia-Nitrogen Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
  • Top rated
SKU: AS-I9-2Y

Iodide (I)- Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
  • Top rated
SKU: AS-I9-2X

Iodide (I)- Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (500 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
  • Top rated
SKU: AS-HCO29-2Y

Formate (HCO2)- Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
  • Top rated
SKU: AS-HCO29-2X

Formate (HCO2)- Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (500 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
  • Top rated
  • KIT
SKU: AS-F9-SET

Set of 5 Solutions for Fluoride

  • CCL
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  • Brand Spex
  • Matrix H2O
  • Concentration 0.1 M
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
  • Top rated
SKU: AS-F9-5Y

Fluoride (F-) Single-Element Ion Selective Electrode Standard, 0.1 M (125 mL)

  • CCL
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  • Brand Spex
  • Matrix H2O
  • Concentration 0.1 M
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
  • Top rated
SKU: AS-F9-5X

Fluoride (F-) Single-Element Ion Selective Electrode Standard, 0.1 M (500 mL)

  • CCL
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  • Brand Spex
  • Matrix H2O
  • Concentration 0.1 M
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
  • Top rated
SKU: AS-F9-2Y

Fluoride (F)- Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

  • CCL
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  • Brand Spex
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
  • Top rated
SKU: AS-F9-2X

Fluoride (F)- Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (500 mL)

  • CCL
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  • Brand Spex
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
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