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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.

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SKU: QCO-097B

WS - Diquat/Endothall/Glyphosate/Paraquat - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-097

WS -Diquat/Endothall/Glyphosate/Paraquat

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-094B

NPW - Herbicides - Blind

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  • Brand NSI
  • Matrix Methyl tert-butyl ether
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-094

NPW - Herbicides

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-093B

NPW - Toxaphene - Blind

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  • Brand NSI
  • Matrix Acetone
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-093

NPW - Toxaphene

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-077B

WS - Chloral Hydrate - Blind

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  • Brand NSI
  • Matrix Acetonitrile
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-077

WS - Chloral Hydrate

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  • Brand NSI
  • Matrix Acetonitrile
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-075B

WS - Oxygenates - Blind

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  • Brand NSI
  • Matrix PT Methano
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-075

WS - Oxygenates

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-072B

NPW - PCBs in Oil - Blind

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  • Brand NSI
  • Matrix Hemp Oil
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-072

NPW - PCBs in Oil

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  • Brand NSI
  • Matrix Hemp Oil
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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