Determination of Clethodim in Rape and Soil by Liquid Chromatography Tandem Mass Spectrometry
WANG Dong-lan, SHEN Yan, LIU Xian-jin, MA Yao-yao, YU Xiang-yang, SUN Xing, TIAN Tian (Key Laboratory of Food Safety Monitoring and Management of Ministry of Agriculture, Jiangsu Academy of Agricultural Science, Nanjing 210014, China)
An LC-QqQ-MS-MS(liquid chromatography tandem triple quadrupole mass spectrometry) method for determination of clethodim was developed. The mobile phase was acetonitrile-water-formic acid(90:10:0.1, by vol) and the clethodim residues in rape and soil were detected in multiple reaction mode(MRM). The results showed that, when the fortified level were 0.01, 0.05, 0.10 mg/kg, the recoveries were in the range of 90-100% and the relative standard deviation(RSD) were less than 10%.