Residue and dissipation of zinc thiazole in tobacco field ecosystem

文献类型: 外文期刊

第一作者: Li, Yiqiang

作者: Li, Yiqiang;Sun, Huiqing;Xu, Jinli;Xu, Guangjun;Zhang, Jili;Su, Zan;Wei, Jianyu;Zhu, Guangyan

作者机构:

关键词: Zinc thiazole;dissipation;residue;derivatisation

期刊名称:INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY ( 影响因子:2.826; 五年影响因子:2.215 )

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收录情况: SCI

摘要: A high-performance liquid chromatography with ultraviolet (HPLC-UV) detection method after derivatisation was developed for the first time for the novel fungicide zinc thiazole residue in tobacco samples. Field trials in two different locations were conducted to investigate the dissipation and residue of zinc thiazole in tobacco leaves and soil. The average recoveries of zinc thiazole were in the range of 82.5%-93.9% with relative standard deviations (RSDs) of 1.2%-9.1%. The zinc thiazole showed a rapid dissipation rate in fresh tobacco leaves with the half-lives of 1.1-1.6 days. The terminal residues of zinc thiazole in cured tobacco leaves and soil were 2.8-28.0 mg kg(-1) and < 0.05 mg kg(-1), respectively. The results could be used to establish the maximum residue limits (MRLs) and provide guidance for the scientific use of zinc thiazole in agriculture.

分类号: X

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