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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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8 Component ICP Standard for EPA 200.7 in 2% HNO3 Solution A 8 Component ICP Standard for EPA 200.7 in 2% HNO3 Solution A
SKU: ICP-200.7-1-A

8 Component ICP Standard for EPA 200.7 in 2% HNO3 Solution A

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  • Brand HPS
  • Matrix 2% HNO3
  • Concentration Multiple
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
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9 Component ICP Standard for EPA 200.7 in 2% HNO3 9 Component ICP Standard for EPA 200.7 in 2% HNO3
SKU: ICP-200.7-1

9 Component ICP Standard for EPA 200.7 in 2% HNO3

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  • Brand HPS
  • Matrix 2% HNO3
  • Concentration Multiple
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
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Sulfate from Sodium Sulfate at 1,000 µg/mL in H2O Sulfate from Sodium Sulfate at 1,000 µg/mL in H2O
SKU: IC-SS-M

Sulfate from Sodium Sulfate at 1,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
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Sulfate from Sodium Sulfate at 100 µg/mL in H2O Sulfate from Sodium Sulfate at 100 µg/mL in H2O
SKU: IC-SS

Sulfate from Sodium Sulfate at 100 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 100 µg/mL
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Sulfate from Sodium Sulfate at 10,000 µg/mL in H2O Sulfate from Sodium Sulfate at 10,000 µg/mL in H2O
SKU: IC-SS-10M

Sulfate from Sodium Sulfate at 10,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 10,000 µg/mL
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Sulfur from Sodium Sulfate at 1,000 µg/mL in H2O Sulfur from Sodium Sulfate at 1,000 µg/mL in H2O
SKU: IC-SR-M

Sulfur from Sodium Sulfate at 1,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
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Sulfur from Sodium Sulfate at 100 µg/mL in H2O Sulfur from Sodium Sulfate at 100 µg/mL in H2O
SKU: IC-SR

Sulfur from Sodium Sulfate at 100 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 100 µg/mL
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Thiocyanate from Sodium Thiocyanate at 1,000 µg/mL in H2O Thiocyanate from Sodium Thiocyanate at 1,000 µg/mL in H2O
SKU: IC-SCN-M

Thiocyanate from Sodium Thiocyanate at 1,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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Thiosulfate from Sodium Thiosulfate at 1,000 µg/mL in H2O Thiosulfate from Sodium Thiosulfate at 1,000 µg/mL in H2O
SKU: IC-S2O3-M

Thiosulfate from Sodium Thiosulfate at 1,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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Thiosulfate from Sodium Thiosulfate at 100 µg/mL in H2O (100 mL) Thiosulfate from Sodium Thiosulfate at 100 µg/mL in H2O (100 mL)
SKU: IC-S2O3

Thiosulfate from Sodium Thiosulfate at 100 µg/mL in H2O (100 mL)

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  • Brand HPS
  • Matrix H2O
  • Concentration 100 µg/mL
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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Propionate at 1,000 µg/mL in H2O (100 mL) Propionate at 1,000 µg/mL in H2O (100 mL)
SKU: IC-PRO-M

Propionate at 1,000 µg/mL in H2O (100 mL)

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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Propionate at 100 µg/mL in H2O Propionate at 100 µg/mL in H2O
SKU: IC-PRO

Propionate at 100 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 100 µg/mL
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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