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Analytical Technique

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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Midpoint Check w/CLP Surrogates (5X1.5mL) Midpoint Check w/CLP Surrogates (5X1.5mL)
SKU: WL-514FP

Midpoint Check w/CLP Surrogates (5X1.5mL)

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  • Brand NSI
  • Concentration 50 ug/mL
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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Midpoint Check w/Surrogates - SW-846 (5X1.5mL) Midpoint Check w/Surrogates - SW-846 (5X1.5mL)
SKU: WL-513FP

Midpoint Check w/Surrogates - SW-846 (5X1.5mL)

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  • Brand NSI
  • Concentration 50 ug/mL
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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Ready Stock 200 - SW-846 Surr (5mL) Ready Stock 200 - SW-846 Surr (5mL)
SKU: WL-507

Ready Stock 200 - SW-846 Surr (5mL)

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  • Brand NSI
  • Matrix Methylene chloride
  • Concentration 200 ug/mL
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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Pesticide Spike II Pesticide Spike II
SKU: WL-445

Pesticide Spike II

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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TCL BNA LCS Spike w/o Benzidines (50mL) TCL BNA LCS Spike w/o Benzidines (50mL)
SKU: WL-408-50X

TCL BNA LCS Spike w/o Benzidines (50mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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TCL BNA LCS Spike (50mL) TCL BNA LCS Spike (50mL)
SKU: WL-408-50

TCL BNA LCS Spike (50mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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TCL BNA LCS Spike w/o Benzidines (25mL) TCL BNA LCS Spike w/o Benzidines (25mL)
SKU: WL-408-25X

TCL BNA LCS Spike w/o Benzidines (25mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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TCL BNA LCS Spike (25mL) TCL BNA LCS Spike (25mL)
SKU: WL-408-25

TCL BNA LCS Spike (25mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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TCL BNA LCS Spike w/o Benzidines (10mL) TCL BNA LCS Spike w/o Benzidines (10mL)
SKU: WL-408-10X

TCL BNA LCS Spike w/o Benzidines (10mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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TCL BNA LCS Spike (10mL) TCL BNA LCS Spike (10mL)
SKU: WL-408-10

TCL BNA LCS Spike (10mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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625 LCS Spike (2 x 25mL) 625 LCS Spike (2 x 25mL)
SKU: WL-397X

625 LCS Spike (2 x 25mL)

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  • Brand NSI
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Concentration 100ug/mL
  • Matrix Methanol/Methylene
  • Raw Material >95% min; as available
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625 LCS Spike (2 x 25mL) 625 LCS Spike (2 x 25mL)
SKU: WL-397

625 LCS Spike (2 x 25mL)

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  • Brand NSI
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Concentration 100ug/mL
  • Matrix Methanol/Methylene
  • Raw Material >95% min; as available
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