Parallel Capillary Column Gas Chromatography in the Determination of Chlorinated Pesticides and PCBs

Abstract
An improved method for the determination of chlorinated pesticides and PCBs using the parallel capillary column technique is described. The method employs two capillary columns in parallel from a common injector to separate detectors. This configuration allows simultaneous injection of a sample on two columns. The result is a more efficient, reliable way to identify and quantify these substances in environmental samples.