Abstract: Identification of Pyrethroid Insecticides With GC Method (Hu Zengren; Yan Jixiang; Lin Nengming; Pharm acy Department of Zhejiang Medical University, Hanzhou, China)The identification method of six Common pyrethroid insecticides with GC has been developed experimentally. Using relative retention time (RRT) to one compound of this Series in GC as the identification guo may be ideal. Compared with retention index method, this one may identify all pyrethroid insecticides and in simple and rapid.