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Analytical Reference Materials

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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8,729 Items found

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Total Phenolics QC Concentrate CRM Total Phenolics QC Concentrate CRM
SKU: QCI-032

Total Phenolics 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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Amenable and Total Cyanide Concentrate - Blind Amenable and Total Cyanide Concentrate - Blind
SKU: QCI-031B

Amenable and Total Cyanide Concentrate - Blind

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  • Brand NSI
  • Concentration 0.1 - 1 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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Amenable and Total Cyanide QC Concentrate Amenable and Total Cyanide QC Concentrate
SKU: QCI-031

Amenable and Total Cyanide QC Concentrate

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  • Brand NSI
  • Certification Single: Grav. w/Analytical Confirmation
  • Concentration 0.1 - 1 mg/L
  • Raw Material >95% min; as available
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Oil & Grease Concentrate - Blind Oil & Grease Concentrate - Blind
SKU: QCI-029B

Oil & Grease Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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Oil & Grease QC Concentrate CRM Oil & Grease QC Concentrate CRM
SKU: QCI-029

Oil & Grease 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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Demand Concentrate - Blind Demand Concentrate - Blind
SKU: QCI-026B

Demand Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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Demand QC Concentrate Demand QC Concentrate
SKU: QCI-026

Demand QC Concentrate

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  • Brand NSI
  • Certification Single: Gravimetric w/IC Confirmation
  • Raw Material >95% min; as available
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Full NELAC WS Inorganics Kit Full NELAC WS Inorganics Kit
SKU: QCI-019K

Full NELAC WS Inorganics Kit

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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EPA WS Inorganics Kit EPA WS Inorganics Kit
SKU: QCI-018K

EPA WS Inorganics Kit

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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Inorganic Disinfection By-Products Concentrate - Blind Inorganic Disinfection By-Products Concentrate - Blind
SKU: QCI-017B

Inorganic Disinfection By-Products Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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Inorganic Disinfection By-Products Concentrate CRM Inorganic Disinfection By-Products Concentrate CRM
SKU: QCI-017

Inorganic Disinfection By-Products Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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Trace Metals Concentrate - Blind Trace Metals Concentrate - Blind
SKU: QCI-016B

Trace Metals Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
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