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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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1,834 Items found

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  • Top rated
SKU: CALMIX4-100

Assurance® Instrument Check Standard 4 for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 50 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
SKU: BFS-5Y

Sulfur Biodiesel Standard, 5 µg/g (100 mL)

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  • Brand Spex
  • Matrix B100 Biofuel
  • Concentration 5 µg/g
  • Top rated
SKU: CALMIX10-100

Assurance® Instrument Check Standard 10 for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: CALMIX8-500

Assurance® Instrument Check Standard 8, 50 µg/mL (50 ppm) for AA & ICP (500 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 50 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: CANN-INHL1

USP 232 REVISION 40 INHALATION 1

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  • Brand Spex
  • Matrix 5% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: CL-CAL-2

Claritas PPT® ICP-MS Instrument Calibration Standard 2, 100 µg/mL (100 ppm) (125 mL)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid/tr. HF
  • Concentration 100 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
  • Top rated
SKU: CL-CAL-2A

Claritas PPT® ICP-MS Instrument Calibration Standard 2A (125 mL)

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  • Brand Spex
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
  • Concentration 50 µg/mL
  • Matrix 5% HNO3/tr. Tartaric Acid
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Top rated
SKU: CL-CAL-1

Claritas PPT® ICP-MS Instrument Calibration Standard 1, 20 µg/mL (20 ppm) (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid
  • Concentration 20 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
  • Top rated
SKU: CL-CAL-1A

Claritas PPT® ICP-MS Instrument Calibration Standard 1A (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid
  • Concentration 50 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
SKU: BFS-25Y

Sulfur Biodiesel Standard, 25 µg/g (100 mL)

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  • Brand Spex
  • Matrix B100 Biofuel
  • Concentration 25 µg/g
SKU: BFS-50Y

Sulfur Biodiesel Standard, 50 µg/g (100 mL)

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  • Brand Spex
  • Matrix B100 Biofuel
  • Concentration 50 µg/g
  • Top rated
  • KIT
SKU: CL-ICS-SET

Claritas PPT® ICP-MS Instrument Check Standards Set (125 mL)

  • CCL
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  • Brand Spex
  • Matrix Multiple
  • Concentration 10 µg/mL
  • Measured Impurities 68 elements to ppb (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
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