Rapid determination method for 25 organchlorine pesticides in vegetables and fruits
蔬菜水果中25种有机氯农药残留快速检测方法

Using Solid Phase Extraction,25 organochlorine pesticides in vegetables and fruits were extrated cleaned up,and concentrated. The residues of 25 organochlorine pesticides were identified simultaneously and quantitation using Gas Chromatography with dual column and dual electron capture detector (ECD). The average recoveries of the three spiked levels of 25 organochlorine pesticides were 70%-120% in 6 vegetables and fruits. TheCoefficient of Variation (CV) is less than 20%. The ranges of minimum detection limits were 0.0011-0.0600mg/kg,0.0010-0.7575mg/kg in HP 1 column and HP 17 column respectively.