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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 Category

60 Years
of Serving the Scientific Industry

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

Posted 10/9/2014 |

 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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USP <467> Residual Solvents

Posted 10/1/2014 |

The USP general chapter <467> Residual Solvents is a method widely used for identifying and quantifying residual solvents when there is no information available on what solvents are likely to be present.  USP <467> is divided into two separate sections based upon sample solubility: water soluble and water insoluble articles.

As required by the analytical procedure given in USP <467> for identifying and quantifying residual solvents in drug substances, drug products and excipients, SPEX CertiPrep now offers 35 analytes in Dimethyl Sulfoxide for Class 1, Class 2 and Class 3 solvents.  Our products are manufactured and double checked by our QC department to validate the certificate of analysis which accompanies each product.

Residual solvents in pharmaceuticals are trace level impurities of volatile organic compounds in final products or excipients. In general, residual solvents originate from manufacturing processes related to the preparation of drug products. They can also form during product packaging and storage.

For more information on these products, click here.

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Suggested Reading: Practical Guide to ICP-MS Analysis: A Tutorial for Beginners

Posted 8/5/2014 |

Are you new to the wonderful world of ICP-MS analysis?  Are you considering making the jump to an ICP-MS?  If so, then you should read Practical Guide to ICP-MS: A Tutorial for Beginners, Second Edition by Robert Thomas.  This newly revised second edition is perfect for the beginner, and includes updated information on the latest techniques and applications in many industries.

You can visit Rob Thomas's website to learn even more about the book, or click the thumbnail below to order it directly from the publisher's website

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