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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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SKU: S23-300Y

23 ELEMTNT STD,300UG/ML (100 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 300 µg/g
  • Top rated
SKU: S-2320

p-Isopropyltoluene

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  • Brand Spex
  • Matrix Methanol-P&T
  • Concentration 1,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: S-2315

Isopropylbenzene

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  • Brand Spex
  • Matrix Methanol-P&T
  • Concentration 1,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
SKU: S23-100Z

23 ELEMENT STD,100UG/ML ( (50 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 100 µg/g
SKU: S23-100Y

23 ELEMENT STD,100UG/ML (100 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 100 µg/g
  • Top rated
SKU: S-2305

Isopropyl acetate

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  • Brand Spex
  • Matrix Methanol-P&T
  • Concentration 1,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: S-2300

Isoprene

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  • Brand Spex
  • Matrix Methanol-P&T
  • Concentration 1,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: S-2274

Isobutyl acetate

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  • Brand Spex
  • Matrix Methanol-P&T
  • Concentration 1,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: S-2247

Imidacloprid

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  • Brand Spex
  • Matrix Acetone
  • Concentration 1,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
SKU: S21-900Z

MULTI-STANDARD S21, 21 ELEMENTS AT 900UG/G, 50G

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 900 µg/g
SKU: S21-900Y

MULTI-STANDARD S21, 21 ELEMENTS AT 900UG/G, 100G

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 900 µg/g
  • Top rated
SKU: S-2190

n-Hexane

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  • Brand Spex
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Concentration 1,000 μg/mL
  • Matrix Methanol-P&T
  • Raw Material >95% min; as available
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