Polar Organophosphorus Pesticides Research Articles

Effect of Injection Solvent on Gas Chromatographic Quantitation of Some Polar Organophosphorus Pesticides

Abstract Hexane solution aliquots containing 4 ng dimethoate and 8 ng β-phosphamidon gave peak heights on gas chromatographic analysis only 64% and 43%, respectively, of those from corresponding aliquots of acetone solutions. The low values with hexane solutions were caused by adsorption of these compounds in the syringe. Acetone solutions of these compounds showed no losses due to syringe adsorption.