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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

Download Our Inorganic Standards Brochure

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

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SKU: IC-7-2

7 Anion Standard 2 (125mL)

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  • Brand NSI
  • Matrix Water
  • Concentration 1000 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IC-7-1

7 Anion Standard 1 (125mL)

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  • Brand NSI
  • Matrix Water
  • Concentration 1000 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IC-6-1

6 Cation Standard (125 mL)

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  • Brand NSI
  • Matrix Water
  • Concentration 1000 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: IC-5-1

6 Anion Standard (125 mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: FM-740-O

Metals in Oil

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  • Brand NSI
  • Matrix Hemp Oil
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: FM-740

Heavy Metals in Hemp

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  • Brand NSI
  • Matrix Hemp
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: IS-017

Total Hardness CRM, 1000mg

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  • Brand NSI
  • Concentration 1000mg
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: FM-747

Water Activity in Edible

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  • Brand NSI
  • Matrix Edible
  • Raw Material >95% min
  • Certification Single: Grav. w/Analytical Confirmation
SKU: FM-746

Water Activity in Hemp

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  • Brand NSI
  • Matrix Hemp
  • Raw Material >95% min
  • Certification Single: Grav. w/Analytical Confirmation
SKU: FM-636

Water Activity in Hemp Oil

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  • Brand NSI
  • Matrix Hemp Oil
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: IS-034

Calcium Hardness CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: SQCI-141B

Perchlorate in Soil – Blind

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