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SPEX CertiPrep

 has been servicing the scientific community since 1954. We are a leading manufacturer of Certified Reference Materials (CRMs) and Calibration Standards for Analytical Spectroscopy and Chromatography. We offer a full range of Inorganic and Organic CRMs. We are certified by DQS to ISO 9001:2015 and are proud to be accredited by A2LA to ISO/IEC 17025:2005 and ISO 17034:2016. The scope of our accreditation is the most comprehensive in the industry and encompasses all our manufactured products.



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SPEX CertiPrep Cannabis Standards
SPEX CertiPrep offers ISO/IEC 17025 and ISO 17034 Certified Cannabis Standards. Cannabis Standards are offered for Residual Solvents, Pesticides, Terpenes and Heavy Metals.
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SPEX CertiPrep Inorganic and Organic CRMs
SPEX CertiPrep has been servicing the scientific community since 1954. We are a leading manufacturer of Certified Reference Materials (CRMs) and Calibration Standards for Analytical...
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SPEX CertiPrep Pesticide Standards
Now available, SPEX CertiPrep premixed pesticide multi-compound CRMs. Want all 144 top pesticides? We have the kit containing all of the compounds. Pesticide residue analysis...
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Arsenic and Old Lace Wings
Pesticides are now a daily part of our world from the anti-bacterial soaps we use to the commercial pesticides that are applied to our food....
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Latest News

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Patricia Atkins New Tech Tip Tuesday with Emerald Scientific
Posted 9/28/2018 | Understand Pesticides and their Analytical Challenges to the Cannabis Industry Pesticides are now a daily part of our world, from the anti-bacterial soaps we...
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SPEX CertiPrep hosts the New Jersey Bipartisan Legislative Manufacturing Caucus Hearing
Posted 8/15/2018 | On Tuesday, August 14, 2018 SPEX CertiPrep hosted the New Jersey Bipartisan Legislative Manufacturing Caucus Hearing. NJMEP has been working closely with...
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SPEX CertiPrep wins NJIT Top Diversity and Inclusion Supplier Award
Posted 6/28/2018 |   SPEX CertiPrep is proud to have received the NJIT Award for Top Diversity and Inclusion Supplier for Career Development Services Best-in-Class...
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Patricia Atkins Published in Spectroscopy Magazine, Atomic Perspectives
Posted 1/26/2018 | Spectroscopy Magazine Publication  October 2017 - Atomic Perspectives Our Daily Dose of Poison: A Look at Lead in the Food Supply Abstract:...
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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.