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SPEX CertiPrep is accredited by A2LA for Organic and Inorganic Certified Reference Materials. In addition to being registered as an ISO 9001 facility, SPEX CertiPrep is accredited by A2LA as complying with the requirements of ISO/IEC 17025 and ISO/IEC Guide 34. Our scope is the most comprehensive in the industry.



Single Inorganic Speciation Standards
Concentration: 1000 µg/mL

Part # Description Matrix Volume Price Add to Cart
SPEC-AS3 Arsenic +3, 1,000 ug/mL, 125 mL 2% HCl 125 mL $ 54.00
SPEC-AS3M Arsenic +3, 1,000 ug/mL, 30 mL 2% HCl 30 mL $ 25.00
SPEC-AS5 Arsenic +5, 1,000 ug/mL for ICP, 125 mL H2O 125 mL $ 57.00
SPEC-AS5M Arsenic +5, 1,000 ug/mL for ICP, 30 mL H2O 30 mL $ 25.00
SPEC-CR3 Chromium +3, 1,000 ug/mL, for ICP, 125 mL 2% HNO3 125 mL $ 52.00
SPEC-CR3M Chromium +3, 1,000 ug/mL for ICP, 30 mL 2% HNO3 30 mL $ 25.00
SPEC-CR6 Chromium +6, 1,000 ug/mL, for ICP, 125 mL H2O 125 mL $ 57.00
SPEC-CR6M Chromium +6, 1,000 ug/mL for ICP, 30 mL H2O 30 mL $ 28.00
SPEC-SE4 Selenium +4, 1,000 ug/mL, for ICP, 125 mL 2% HNO3 125 mL $ 51.00
SPEC-SE4M Selenium +4, 1,000 ug/mL for ICP, 30 mL 2% HNO3 30 mL $ 25.00
SPEC-SE6 Selenium +6, 1,000 ug/mL, for ICP, 125 mL H2O 125 mL $ 56.00

Organic Arsenic Speciation Standards
Volume: 30 mL

Part # Description Matrix Concentration Price Add to Cart
SPEC-AS-DMA 10 ug/mL DMA (Dimethylarsinic Acid Sodium Salt) H2O Total of 10µg/mL $ 44.00
SPEC-AS-MMA 10 ug/mL MMA (Disodium Methylarsonate Hexahydrate) H2O Total of 10µg/mL $ 44.00

Dual Speciation Standards
Volume: 30 mL

Part # Description Matrix Concentration Price Add to Cart
SPEC-DUAL-AS Dual Arsenic (+3,+5) Speciation Standard H2O/tr.HCL Total of 20µg/mL $ 44.00
SPEC-DUAL-CR Dual Chromium (+3, +6) Speciation Standard H2O Total of 20µg/mL $ 44.00
SPEC-DUAL-SE Dual Selenium (+4,+6) Speciation Standard H2O/tr.HNO3 Total of 20µg/mL $ 44.00

Carbon Black FREE Sample

Save 15% when you enter promo code SPRING15-16
on your next online order of $100 or more

  • Promo code valid on Organic and Inorganic products.
  • Minimum order amount is $100
  • Must enter promo code SPRING15-16 when ordering.
  • Valid on direct, US orders only.
  • Not valid on Flux, Oil Standards and ERA QC Samples.

Not valid with any other promotions. One per customer. Offer expires 6/15/2016.