Abstract: This artical established the capillary GC analytica method in surveying manifold pesticides in vegetable at one time. completed the vegetables of organic phosphorus, organic chlorine 17 pesticide residues in the sample pre-treatment and chromatography analysis. Organic phosphorus by acetone extraction, gel column chromatography purification, HP-5 silica capillary column chromatography, flame-ray detector. Organic chlorine using ethyl acetate - cyclohexane and gel purification column extraction purification, quartz capillary gas chromatography (ECD allocation) detection. Experimental results show that 17 species of organic phosphorus, organic pesticides residues were well separated, samples in the range of 79% - 110.14%. The relative standard deviation of 3.14% -11.69% Pesticide residues chromatography analysis of the linear relationship was good to meet quantitative analysis requirements. Act because the sample processing, effective purification method is accurate, reliable, precision, accuracy can meet the requirements analysis, Vegetable security research, analysis and evaluation of pollution-free vegetables have broad application prospects.
Keywords: Organic phosphorus; Organic chlorine; Pesticide residues; GC
