The Stereoselective Degradation of Diclofop-methyl Enantiomers in Soil
The two enantiomers of diclofop-methyl were separated on an OD chiral column by highperformance liquid chromatography. Excellent resolution was obtained using n-hexane/2-propanol 90:10 (V/V) mobile phase at a flow rate of 1.0mL/min. The two enantiomers were identified by a dichroism detector (CD) detector and the UV monitoring wavelength was 230nm. A valid chiral analysis method was set up for determination of the enantiomers in soil and the validation included linearity, precision, limit of detection (LOD) and recovery. The results showed the method developed was reliable for the quantitative analysis of diclofop-methyl enantiomers. The stereoselective degradation in soil was performed to evaluate the environmental behavior. It was found that the (+)- form (CD signal) degraded faster than its antipode resulting in an enrichment of (-)-enantiomer.
diclofop-methyl enantiomer soil stereoselective degradation
Wang Peng Jiang Shuren Liu Donghui Gu Xu Zhou Zhiqiang
Department of Applied Chemistry, China Agricultural University, Beijing 100094, P. R. China
国际会议
北京
英文
254-258
2007-10-09（万方平台首次上网日期，不代表论文的发表时间）