Citation: Zhi Hua Wang, Tong Yang, Dong Mei Qin, Yong Gong, Ying Ji. Determination and dynamics of difenoconazole residues in Chinese cabbage and soil[J]. Chinese Chemical Letters, ;2008, 19(8): 969-972. doi: 10.1016/j.cclet.2008.04.028 shu

Determination and dynamics of difenoconazole residues in Chinese cabbage and soil

a State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
b Institute for the Control of Agrochemicals, Ministry of Agriculture, People's Republic of China, Beijing 100026, China

Received Date: 4 March 2008

An analytical method was developed using a solid phase extraction (SPE) cleanup and gas chromatography for detecting the residues of difenoconazole in Chinese cabbage and soil.The recovery and the relative standard deviation of this method in Chinese cabbage was 87.6-99.0%, 1.71-10.50%, respectively; in soil was 92.4-95.5%, 4.93-10.70%, respectively.Further degradation of difenoconazole residue in Chinese cabbage and soil was studied to evaluate residue behavior and environmental safety of difenoconazole.Degradation rate of difenoconazole in both Chinese cabbage and soil followed the first order kinetics with the half-lives of 6.6-7.8 and 54.2-55.0 days, respectively.
- Difenoconazole,
- Residue,
- Dynamics,
- Chinese cabbage,
- Soil
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