All SPEX® Certiprep Products

Spex® CertiPrep is a market leader of high quality, innovative Inorganic and Organic Certified Reference Materials. The company provides an unparalleled selection of inorganic standards for AA, ICP, ICP/MS and LC-ICP/MS; and organic standards for GC, GC/MS, LC, and LC/MS. Its products are used in laboratories around the world, conforming to international environmental and safety standards.