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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 17025:2017 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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Terpenes and Flavonoids Webinar
Posted 9/16/2020 | Terpenes are the common term for a large group of compounds that contribute to the flavor and smell of botanical products. Flavonoids are botanical compounds,...
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SPEX Speaks Science Podcast
Posted 8/24/2020 | Check out our podcast on Personal Protection Equipment (PPE). A normal part of laboratory operations is the use of personal protective equipment (PPE). Most laboratory personnel...
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SPEX Speaks Science Podcast
Posted 8/24/2020 | Check out our podcast on Terpenes and Flavonoids. Terpenes are the common term for a large group of compounds that contribute to flavor and smell of...
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SPEX CertiPrep Paves a Path Toward Growth by Working with NJMEP
Posted 7/15/2020 | SPEX CertiPrep was recently featured on the NJMEP blog series titled "Success Stories". The blog highlights companies and manufacturers for their Operation Excellence....
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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.