Inductively coupled plasma (ICP) is a type of plasma source that is frequently coupled with mass spectrometry for travel level elemental analysis. Spex provides quality ICP-MS standards for all your trace analyses in a variety of packaging sizes. Spex CertiPrep Claritas PPT® standards are a class of Inorganic Certified Reference Standards designed specifically for today’s new generation of trace ICP and ICP-MS instrumentation. These solutions are made with the highest purity materials available over 99.9999% purity (where commercially available).