Ion chromatography (IC) systems separate charged particles from a liquid and measure their concentration. IC systems can analyze particles such as anions, cations, organic salts, and proteins. They are used in environmental, manufacturing, food, pharmaceutical, and chemical industries. Key things to consider when purchasing an IC system include: number of samples, range of sample volume, whether eluent is generated by the system, flow and pressure of the column, and ease and functionality of the chromatography data system software.