Water that is essential for a variety of chromatography applications, including the preparation of mobile phases and samples. Water used in the HPLC process is purified through a combination of distillation, reverse osmosis, ultraviolet irradiation, filtering, ion exchange, and other methods.
Premade and ready-to-use water-acetonitrile blend (60:40) with 0.1% formic acid serves as a wash solution to clean sample and liquid chromatography injection probes. Commonly used as an auto-sampler cleaning solution in LC-MS.