Residues and dissipation kinetics of triazole fungicides difenoconazole and propiconazole in wheat and soil in Chinese fields

卷:168

Zhang, Zhiyong ; Jiang, Wayne ; Jian, Qiu ; Song, Wencheng ; Zheng, Zuntao ; Wang, Donglan ; Liu, Xianjin

Minist Agr

关键词: Difenoconazole;    Propiconazole;    Wheat;    Soil;    Residues;    Dissipation kinetics;   

DOI  :  10.1016/j.foodchem.2014.07.087

学科分类：食品科学和技术

【 摘 要 】

An analytical method for simultaneously determining the residues of difenoconazole and propiconazole in wheat straw, wheat grain and soil was developed. Mean recoveries and relative standard deviations in all samples ranged 86.2-101.3% and 3.1-12.1% for propiconazole and difenoconazole. The half-lives of difenoconazole and propiconazole were 3.6-5.5 days and 5.1-6.9 days in wheat straws, and 4.9-5.8 days and 6.1-8.4 days in soil, respectively. The residues in wheat grain were found to be <0.01 mg/1