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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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1,815 Items found

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Anions in Soil Anions in Soil
SKU: SPEI-015

Anions in Soil

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  • Brand NSI
  • Matrix Soil
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Flash Point Flash Point
SKU: SPEI-014

Flash Point

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
Reactive Cyanide Reactive Cyanide
SKU: SPEI-013

Reactive Cyanide

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Corrosivity (pH) Corrosivity (pH)
SKU: SPEI-012

Corrosivity (pH)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
TCLP Metals in Soil TCLP Metals in Soil
SKU: SPEI-005

TCLP Metals in Soil

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  • Brand NSI
  • Matrix Soil
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
Hexavalent Chromium Hexavalent Chromium
SKU: SPEI-003

Hexavalent Chromium

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Metals in Soil Metals in Soil
SKU: SPEI-001

Metals in Soil

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  • Brand NSI
  • Matrix Soil
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
  • Top rated
CHROMIUM 6 in H2O 1000ppm (125 mL) CHROMIUM 6 in H2O 1000ppm (125 mL)
SKU: SPEC-CR6

CHROMIUM 6 in H2O 1000ppm (125 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 1000ppm
  • Measured Impurities 68 elements to ppm (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
  • Top rated
CHROMIUM 3 in 2-5% HNO3 1000ppm (125ml) CHROMIUM 3 in 2-5% HNO3 1000ppm (125ml)
SKU: SPEC-CR3

CHROMIUM 3 in 2-5% HNO3 1000ppm (125ml)

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  • Brand Spex
  • Matrix 2-5% HNO3
  • Concentration 1000ppm
  • Measured Impurities 68 elements to ppm (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
  • Top rated
ARSENIC 3 in 2-5% HCL 1000ppm (125 mL) ARSENIC 3 in 2-5% HCL 1000ppm (125 mL)
SKU: SPEC-AS3

ARSENIC 3 in 2-5% HCL 1000ppm (125 mL)

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  • Brand Spex
  • Matrix 2-5% HCL
  • Concentration 1000ppm
  • Measured Impurities 68 elements to ppm (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
SULFUR BLANK IN #2 DIESEL FUEL SULFUR BLANK IN #2 DIESEL FUEL
SKU: SDFS-BLK-Y

SULFUR BLANK IN #2 DIESEL FUEL

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  • Brand Spex
  • Matrix #2 DIESEL FUEL
  • Concentration 0 µg/g
SULFUR IN #2 DIESEL FUEL 750PPM (100 mL) SULFUR IN #2 DIESEL FUEL 750PPM (100 mL)
SKU: SDFS-750-Y

SULFUR IN #2 DIESEL FUEL 750PPM (100 mL)

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  • Brand Spex
  • Matrix #2 DIESEL FUEL
  • Concentration 750PPM
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