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Inorganic Reference Materials

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

IC Standards

ICP Standards

ICP-MS Standards

Cannabis & Hemp

USP <232> and USP <233> Elemental Impurity and ICH Standards

Organometallic Oil Standards

Carbon Black

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1,800 Items found

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Calcium 1,000 µg/mL (1,000 ppm) (50 g) Calcium 1,000 µg/mL (1,000 ppm) (50 g)
SKU: ORG-CA8-2Z

Calcium 1,000 µg/mL (1,000 ppm) (50 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 1,000 µg/mL
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Bismuth 1,000 µg/mL (1,000 ppm) (50 g) Bismuth 1,000 µg/mL (1,000 ppm) (50 g)
SKU: ORG-BI8-2Z

Bismuth 1,000 µg/mL (1,000 ppm) (50 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 1,000 µg/mL
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Beryllium 1,000 µg/mL (1,000 ppm) (50 g) Beryllium 1,000 µg/mL (1,000 ppm) (50 g)
SKU: ORG-BE8-2Z

Beryllium 1,000 µg/mL (1,000 ppm) (50 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 1,000 µg/mL
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Barium 5,000 µg/mL (5,000 ppm) (50 g) Barium 5,000 µg/mL (5,000 ppm) (50 g)
SKU: ORG-BA8-4Z

Barium 5,000 µg/mL (5,000 ppm) (50 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 5,000 µg/mL
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Barium 1,000 µg/mL (1,000 ppm) (50 g) Barium 1,000 µg/mL (1,000 ppm) (50 g)
SKU: ORG-BA8-2Z

Barium 1,000 µg/mL (1,000 ppm) (50 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 1,000 µg/mL
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Boron 5,000 µg/mL (5,000 ppm) (50 g) Boron 5,000 µg/mL (5,000 ppm) (50 g)
SKU: ORG-B8-4Z

Boron 5,000 µg/mL (5,000 ppm) (50 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 5,000 µg/mL
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Boron 1,000 µg/mL (1,000 ppm) (50 g) Boron 1,000 µg/mL (1,000 ppm) (50 g)
SKU: ORG-B8-2Z

Boron 1,000 µg/mL (1,000 ppm) (50 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 1,000 µg/mL
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Arsenic 1,000 µg/mL (1,000 ppm) (50 g) Arsenic 1,000 µg/mL (1,000 ppm) (50 g)
SKU: ORG-AS8-2Z

Arsenic 1,000 µg/mL (1,000 ppm) (50 g)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 1,000 µg/mL
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Aluminum 5,000 µg/mL (5,000 ppm) ( (50 g)) Aluminum 5,000 µg/mL (5,000 ppm) ( (50 g))
SKU: ORG-AL8-4Z

Aluminum 5,000 µg/mL (5,000 ppm) ( (50 g))

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 5,000 µg/mL
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Aluminum 1,000 µg/mL (1,000 ppm) ( (50 g)) Aluminum 1,000 µg/mL (1,000 ppm) ( (50 g))
SKU: ORG-AL8-2Z

Aluminum 1,000 µg/mL (1,000 ppm) ( (50 g))

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  • Brand Spex
  • Matrix Base Oil 20
  • Concentration 1,000 µg/mL
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Assurance® Mixed Calibration Standard 4A without Mercury for AA & ICP (500 mL) Assurance® Mixed Calibration Standard 4A without Mercury for AA & ICP (500 mL)
SKU: MXSTD4A-500N

Assurance® Mixed Calibration Standard 4A without Mercury for AA & ICP (500 mL)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. HF
  • Concentration 40 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
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Assurance® Mixed Calibration Standard 4A without Mercury for AA & ICP (125 mL) Assurance® Mixed Calibration Standard 4A without Mercury for AA & ICP (125 mL)
SKU: MXSTD4A-100N

Assurance® Mixed Calibration Standard 4A without Mercury for AA & ICP (125 mL)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. HF
  • Concentration 40 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
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