SPEX Speaks Science is presented by SPEX CertiPrep. SPEX Speaks Science is hosted by a rotating cast of chemists and industry experts. From highlighting the hidden chemistry in our everyday lives to discussing relevant industry topics, SPEX Speaks Science looks to deliver informative content to the scientific community. SPEX CertiPrep has been servicing the scientific community since 1954. We are a leading manufacturer of Certified Reference Materials (CRMs) and Calibration Standards for Analytical Spectroscopy and Chromatography.