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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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9,242 Items found

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SKU: 2531.13-100MG

(6-Methoxy-2-naphthyl)acetic acid; neat; 100 mg

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  • Brand Chiron
  • Matrix neat
  • Concentration neat
SKU: 2532.13-100-ME

(2RS)-2-(4-Butylphenyl)propanoic acid; 100 µg/mL in methanol; 1 mL

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  • Brand Chiron
  • Matrix methanol
  • Concentration 100 µg/mL
SKU: 2538.14-100-ME

(+)-(S)-Naproxen; 100 µg/mL in methanol; 1 mL

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  • Brand Chiron
  • Matrix methanol
  • Concentration 100 µg/mL
SKU: 2538.14-10K-ME

(+)-(S)-Naproxen; 10,000 µg/mL in methanol; 1 mL

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  • Brand Chiron
  • Matrix methanol
  • Concentration 10,000 µg/mL
SKU: 2538.14-10MG

(+)-(S)-Naproxen; neat; 10 mg

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  • Brand Chiron
  • Matrix neat
  • Concentration neat
SKU: 2538.14-K-ME

(+)-(S)-Naproxen; 1000 µg/mL in methanol; 1 mL

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  • Brand Chiron
  • Matrix methanol
  • Concentration 1000 µg/mL
SKU: 2539.8-100MG

4-Hydroxyisophthalic acid; neat; 100 mg

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  • Brand Chiron
  • Matrix neat
  • Concentration neat
SKU: 2539.8-K-ME

4-Hydroxyisophthalic acid; 1000 µg/mL in methanol; 1 mL

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  • Brand Chiron
  • Matrix methanol
  • Concentration 1000 µg/mL
SKU: 2540.7-K-ME

Paraxanthine; 1000 µg/mL in methanol; 1 mL

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  • Brand Chiron
  • Matrix methanol
  • Concentration 1000 µg/mL
SKU: 2543.20-10MG

Amitriptyline hydrochloride; neat; 10 mg

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  • Brand Chiron
  • Matrix neat
  • Concentration neat
SKU: 2543.20-K-ME

Amitriptyline hydrochloride; 1000 µg base/mL in methanol; 1 mL

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  • Brand Chiron
  • Matrix methanol
  • Concentration 1000 µg base/mL
SKU: 2641.40-10MG

ßß-Carotene; neat; 10 mg

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  • Brand Chiron
  • Matrix neat
  • Concentration neat
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