Abstract
A method for separation and identification of mixtures of organophosphorus pesticides by gas-liquid chromatography with the thermal conductivity detector is described. By the combination of 6 operating conditions with three columns containing high vacuum silicone grease, silicone compound DC-11 and fluorosilicone FS-1265, mixtures of up to 19 organo-phosphorus pesticides can be mutually separated. This technique should be very useful for quality control of pesticide formulation, residue analysis and legal medicine.
