Determination of Carbendazim Residues in Plant, Brown Rice and Soil by HPLC

A new method was developed for residual analysis of carbendazim in plant,brown rice and soil by HPLC.The samples were extracted with methanol + 0.1 mol/L H hydrochloric H H acid H,cleaned up by petroleum ether and ethyl acetate,determined using HPLC equipped with UV detector.The average recoveries of the method ranged from 85.1% to 99.7%,the relative standard deviations were 0.5%-5.2%.The limits of quantification of carbendazim in rice samples were all 0.05 mg/kg.The residue of carbendazim in rice was below the MRL in China.The method of pesticide residue analysis achieved acceptable sensitivity,accuracy and precision.