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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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Uranium Concentrate - Blind Uranium Concentrate - Blind
SKU: QCI-143B

Uranium Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
Uranium QC Concentrate CRM Uranium QC Concentrate CRM
SKU: QCI-143

Uranium QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
Corrosivity - Blind Corrosivity - Blind
SKU: QCI-142B

Corrosivity - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Corrosivity QC Corrosivity QC
SKU: QCI-142

Corrosivity QC

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Orthophosphate-P Concentrate - Blind Orthophosphate-P Concentrate - Blind
SKU: QCI-141B

Orthophosphate-P Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Orthophosphate-P QC Concentrate Orthophosphate-P QC Concentrate
SKU: QCI-141

Orthophosphate-P QC Concentrate

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  • Brand NSI
  • Matrix Water
  • Concentration 0.5 to 5.5 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Nitrite-N Concentrate - Blind Nitrite-N Concentrate - Blind
SKU: QCI-140B

Nitrite-N Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Nitrite-N QC Concentrate Nitrite-N QC Concentrate
SKU: QCI-140

Nitrite-N QC Concentrate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Complex Nutrients Concentrate - Blind Complex Nutrients Concentrate - Blind
SKU: QCI-139B

Complex Nutrients Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Complex Nutrients QC Concentrate Complex Nutrients QC Concentrate
SKU: QCI-139

Complex Nutrients QC Concentrate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Simple Nutrients Concentrate - Blind Simple Nutrients Concentrate - Blind
SKU: QCI-138B

Simple Nutrients Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Simple Nutrients QC Concentrate CRM Simple Nutrients QC Concentrate CRM
SKU: QCI-138

Simple Nutrients QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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