AN134: Determination of Low Concentrations of Perchlorate in Drinking and Ground Waters Using Ion Chromatography

Instrument Type: IC

Perchlorate, a human health concern, has been found in drinking water wells in regions of the U.S. where aerospace material, munitions, or fireworks were developed, tested, or manufactured. This application note shows that perchlorate can be quantified at the 2 μg/L level using a Dionex IonPac AS16 column, hydroxide eluent generation, a large-loop injection, and suppressed conductivity detection. Refer to AU148 for a description of how detection levels of 1 μg/L or less can be obtained using an improved suppressor.