A gas chromatographic method without derivatization was established for the residue analysis of 19 organonitrogen and organophosphorus pesticides in cereals, fruit and vegetable.

• 本文采用气相色谱填充柱,研究测定水果、蔬菜和粮食中19种有机氮和有机磷农药的混合多残留分析方法。