Ino-exclusion chromatogaphic determination of carboxylic acids used to support the microbially mediated reductive dechlorination of tetrachloroethene

摘要

An analytical method was developed for the determination of lactic acid, formic acid, acetic acid, propionic acid, and butyric acid in environmental microcosm samples using ion-exclusion chromatography. The chromatographic behavior of various eluent was studied to determine the optimum analytical conditions for eluent concentration and flow rate. Matrix effects caused by inorganic anions including carbonate were investigated. Methods for carbonate removal were also examined. Sub mg/L detection limits and small analytical variations (less than 1/100) were obtained with all five acids.