Abstract:A method was developed for the determination of BHC and DDT residues in eggs and egg products by gas chromatography (GC). Samples were extracted by hexane, purified by concentrated sulfate acid, and then analyzed by GC-ECD. Within the concentration range of 5 µg/kg~20 µg/kg, the recovery rates and variation coefficients were 75.4%~90.3%, and 2.5%~9.1%, respectively. The detection limit was 5.0 μg/kg (S/N=3). This method was simple, sensitive and precise, suitable for the qualitative and quantitative analysis of BHC and DDT residues in eggs and egg products.
