SPEX CertiPrep is the leading manufacturer of Organic and Inorganic Certified Reference Materials for Spectroscopy, Chromatography, and other analytical instrumentation.

We are Certified by UL-DQS for ISO 9001 and accredited by A2LA for ISO/IEC 17025 and ISO Guide 34 with the most comprehensive scope in the industry.

SPEX SamplePrep is the leader in providing superior laboratory equipment, meeting the needs of scientists for over 50 years.

Our mills, grinders, presses and fusion fluxers have become the industry standard for reliability and durability being used in a variety of analytical techniques including XRF, GC-MS, and QuEChERS.