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Analytical Reference Material

Organic, Inorganic, Microbiology & PT Reference Materials

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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9,409 Items found

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SKU: IC-SS-M

Sulfate from Sodium Sulfate at 1,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
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SKU: CMPT-023B

Potency in Hemp PT Express + Spike Matrix

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  • Brand NSI
  • Matrix Hemp
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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SKU: 2515.7-K-AN

Salicylic acid; 1000 µg/mL in acetonitrile; 1 mL

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  • Brand Chiron
  • Concentration 1000 µg/mL
  • Matrix acetonitrile
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SKU: 24121-98

MicroPrefs® PE, PET, PS, PP, PVC & PC Kit (50-300 µm); neat; (x6)

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  • Brand Chiron
  • Concentration neat
  • Matrix Neat
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SKU: TX-1005SQCB

Texas TPH in Soil - Blind

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  • Brand NSI
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Raw Material >95% min; as available
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SKU: TX-1005SQC

Texas TPH in Soil

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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SKU: GRO-1000-PK

Gasoline Range Organics Mix for EPA Method 8015, 1000µg/mL (4 x 1 mL)

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  • Brand Spex
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SKU: WQC-PH-10-500

pH Standard 10 at 25ºC at 10.00 units in H2O (500 mL)

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  • Brand HPS
  • Matrix H2O
  • Raw Material Two 9s as available; no purification
  • Certification Single: Grav. w/multiple Analytical Confirmation
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SKU: 84410-92

Buffer, pH 10.00, Blue, 4 L, 17025

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  • Brand Spex
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SKU: 84410-93

Buffer, pH 10.00, Blue, 500 mL, 17025

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  • Brand Spex
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SKU: 84410-94

Buffer, pH 4.00, Red, 20 L, 17025

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  • Brand Spex
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SKU: 84410-95

Buffer, pH 4.00, Red, 4 L, 17025

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  • Brand Spex
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