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High-quality Inorganic Reference Materials 

We offer a full range of inorganic standards for IC, AA, ICP, and ICP-MS. The highly characterized standards in our Assurance and Claritas PPT lines are intended for ICP and ICP-MS trace analysis. We have built our reputation by providing chemists and environmental scientists products that exhibit quality, reliability, and convenience.

Inorganic Standards Can Be Used For:

  • Atomic Absorption (AA)
  • Inductively Coupled Plasma (ICP)
  • Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
  • Ion Chromatography (IC)

Features of Spex Inorganic Standards:

  • Wide range of single & multi-element standards for Claritas PPT® and Assurance® grades
  • Multi-element standards designed for the latest EPA methods
  • Custom standards tailored to your application needs
  • Traceable to NIST SRM for confidence in results
  • High-purity acids: Assurance® (high purity) & Claritas PPT® (ultra high purity) formulations
  • Broad analytical range with detection levels at ppb (Assurance®) & ppb/ppt (Claritas PPT®), backed by a Certificate of Analysis
  • Dedicated team of scientists for expert guidance & support

Search Our Full Range of Inorganic Standards for IC, AA, ICP, and ICP-MS

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1,834 Items found

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SKU: QCI-193

Fluoride QC

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: QCI-192C

Dissolved Oxygen QC CRM (4 x 125 mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: QCI-192B

Dissolved Oxygen - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: QCI-192

Dissolved Oxygen QC CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: QCI-191B

Ignitability - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: QCI-191

Ignitability QC CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: QCI-190

Uranium QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: QCI-189

Total Residual Chlorine Concentrate CRM 2.00 mg/L

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  • Brand NSI
  • Concentration 2.00 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-188

Total Residual Chlorine Concentrate CRM 1.50 mg/L

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  • Brand NSI
  • Concentration 1.50 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-187

Total Residual Chlorine Concentrate CRM 1.00 mg/L

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  • Brand NSI
  • Concentration 1.00 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-186-5

Settleable Solids Reference Material

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: QCI-186-20

Settleable Solids Reference Material

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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