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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 Guide 34:2009. The scope of our accreditation is the most comprehensive in the industry and encompasses all our manufactured products.



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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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CRM: Beyond the Basics
From accreditation to uncertainty--join SPEX CertiPrep as we explore the world of Certified Reference Materials. Starting with the basics, we will cover topics including the...
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Latest News

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Patricia Atkins Awarded for Achievement in Technical and Scientific Excellence
Posted 8/30/2017 | Please join us in congratulating Patricia Atkins on her award from the Official Methods Board (OMB) for Achievement in Technical and Scientific Excellence ...
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Evolution Of Pesticides
Posted 10/29/2015 | Human history is a tale of mankind trying to control their environment.  One of the earliest attempts to master the environment was the control of...
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The History of Pest Control
Posted 10/29/2015 | Modern pest management and control is an increasingly diverse science with thousands of different management strategies.  Synthetic chemical pesticides, which appeared in our arsenal around...
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The Rise of The Modern Pesticide Revolution
Posted 10/29/2015 | Pest control, which had begun  with simple tools and methods, was refined over centuries and completely reborn during World War II.  The late 19th and...
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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.