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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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  • Top rated
SKU: AS-HCO29-2X

Formate (HCO2)- Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (500 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
SKU: PH-BUFF7-500

pH 7 Certified Buffer Standard, 7 SI Units in H2O (500 mL) Yellow in color

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  • Brand Spex
  • Concentration 7 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
SKU: PH-BUFF8-500

pH 8 Certified Buffer Standard, 8 SI Units in H2O (500 mL)

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  • Brand Spex
  • Concentration 8 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
  • Top rated
SKU: AS-SO49-2Y

Sulfate (SO4)-2 Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix Water
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
SKU: 84410-12

Barium Chloride, 2 N (1 M)

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  • Brand Spex
  • Concentration 1 M
SKU: 10009-1

Calcium at 1,000 µg/mL in 2% HNO3

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  • Brand HPS
  • Matrix 2% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 67 elements to ppb (product)
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: 100064-1

Uranium at 1,000 µg/mL in 2% HNO3 from a Natural Uranium Source

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  • Brand HPS
  • Matrix 2% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 67 elements to ppb (product)
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: 100062-2

Titanium at 1,000 µg/mL in 20% HCl

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  • Brand HPS
  • Matrix 20% HCl
  • Concentration 1,000 µg/mL
  • Measured Impurities 67 elements to ppb (product)
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: 100051-1

Silver at 1,000 µg/mL in 2% HNO3

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  • Brand HPS
  • Matrix 2% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 67 elements to ppb (product)
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: 100038-2

Palladium at 1,000 µg/mL in 5% HCl

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  • Brand HPS
  • Matrix 5% HCl
  • Concentration 1,000 µg/mL
  • Measured Impurities 67 elements to ppb (product)
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: 100042-1

Praseodymium at 1,000 µg/mL in 2% HNO3

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  • Brand HPS
  • Matrix 2% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 67 elements to ppb (product)
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
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