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30 mL Plasma Shots®
ICP & ICP-MS Grade

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Analytical Standards for Medicinal and Recreational Cannabis Testing

SPEX CertiPrep offers Certified Reference Materials (CRMs) for all of the common contaminants found in medicinal and recreational Cannabis

SPEX CertiPrep meets all your QuEChERS needs with general purpose kits suitable for removal of polar organic acids, some low to moderate levels of sugars, and lipids.


60th Anniversary Inorganic and Organic Catalog

Pesticides, PCBs & Herbicides

SPEX CertiPrep is the leader in offering standards designed to work within the EPA, AOAC and FDA Analytical testing methods using leading analytical techniques.

60 Years Experience Making Custom Standards to Your Exact Specifications.

Single and Dual Speciation Standards by ICP/ICP-MS and

SPEX CertiPrep is 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 UL-DQS for ISO 9001:2008 and are proud to be accredited by A2LA under ISO 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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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 challenges of keeping up with regulations and accreditations, uncertainty types, and how to obtain accurate results with confidence!

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Wine Making: The Art & Chemistry of Wine

The production of wine has been an art form and a business for thousands of years. Join SPEX CertiPrep as we discuss the vintner's art, from wine production to the chemistry of wine. Our presentation will include a look at the different chemical aspects of wine from flavor profile agents to contamination and spoilage agents. We invite you to take part in our interesting and informative look at the art and science of wine!

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Restricted Elements in Imported Children's Toys

The recording of our webinar from April 10th entitled, "Identification, Preparation and Analysis of Imported Plastic Children's Toys for Restricted Elements."

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Webinar Recording: Is that really bis (2-chloroisopropyl) ether?

Posted 3/10/2015 |

The compound bis (2-chloroisopropyl) ether is a target compound in EPA methods 625 and 8270. This webinar is designed to educate the environmental community on some problems identified with bis (2-chloroisopropyl) ether that have existed for the past few years and seem to be worsening. There is widespread confusion about what compound B2CIPE actually is, and availability and costs are a known concern.

The webinar discusses the identity of the material used as a reference standard, illustrate the issues and propose a solution to the problem.

Other topics of discussion during the webinar include:

  • What target compound is meant by bis (2-chloroisopropyl) ether?
  • Issues we have observed in detection of the target compound.
  • Additional isomers.
  • Potential solutions to the issues.

Click here to view the webinar recording.




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Download Webinar Recording, Slides and Application Note-Pesticides in Beer and Wine

Posted 1/1/2015 |

 Download the webinar, slides and application note from, "Analysis of Beer, Wine and Components for Pesticides Using High Throughput Techniques and QuEChERS." 

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Single and Dual (New!) Speciation Standards by ICP-MS and LC-ICP-MS

Posted 10/5/2014 |

SPEX CertiPrep offers Inorganic single-element speciation standards including As3+, As5+, Cr3+, Cr6+, Se4+ and Se6+ by ICP and ICP-MS. We are now proud to offer Dual Speciation Standards for LC-ICP-MS! Arsenic (+3,+5) and Selenium (+4,+6) species are currently available.

-Percentages of the species are determined by LC and reported on the certificate.

-An LC Chromatogram is included on the certificate.

-Standards are each at 20 ug/mL and are optimized to work well for both ICP and ICP-MS (with a one-step dilution.)

-Trace impurities in the final solution are analyzed by ICP-MS and reported on the certificate.

Click here for more information.

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Save 15% when you enter promo code FALL15-15
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 FALL15-15 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 1/15/2016.