CPI International Peak Performance™ Standards are manufactured for Inductively Coupled Plasma, Atomic Absorption, Mass Spectroscopy, Gas Chromatography, Liquid Chromatography, and Ion Chromatography and for a wide range of applications including environmental, volatiles and semi-volatiles, pesticides, pharmaceutical, petroleum, wine, cannabis, and food safety. All of our solutions are prepared from high-purity starting materials and are certified to either ISO 17025 or ISO 17034 (please inquire).