[Objective]The method of avermectin residue in rice grain and straw was developed through the operation of HPLC fluorecence detection.[Method] The rice grain samples were extracted with acetonitrile/ethyl acetate(1∶1,V∶V) and the rice straw samples were extracted with ethyl acetate.After derived by TFAA-NMIM system without water,the content of avermectin in the extracts was determined with HPLC-fluoresoence detector.[Results] The results suggested that in the range of adding concentration of 0.001-0.100 mg/...