SPEX® CertiPrep

Why choose Spex® CertiPrep?

SPEX® CertiPrep was founded in 1954 to provide superior certified reference materials and sample preparation equipment for analytical spectroscopy. Since then, they have gained the experience, skills, and specialized training to serve analytical scientists throughout the world. They are a market leader in high-quality, innovative Inorganic, and Organic Certified Reference Materials, as well as PT and PT Express. One of the key elements to success for SPEX® CertiPrep has been their commitment to total customer satisfaction. They provide customers with superior products, expertise, and unmatched customer service.


Unparalleled selection


An unparalleled selection of inorganic
standards, organic standards,
microbiology, PT, and proficiency testing standards.


Customized orders


Customized orders to meet specific requirements for made-to-order inorganic and organic standards.


Customer satisfaction


Commitment to total customer satisfaction
with superior products, industry
expertise, and unmatched customer service.




Reference materials and proficiency tests



Reference materials and proficiency tests


Food and Agricultural

Traceable reference secondary materials



Monitor analytical performance of your environmental tests


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