苯醚甲环唑在芹菜及其土壤中的残留测定和消解动态研究

被引:21
作者
初春 [1 ]
王志华 [1 ]
秦冬梅 [2 ]
龚勇 [2 ]
季颖 [2 ]
机构
[1] 化工资源有效利用国家重点实验室北京化工大学理学院
[2] 农业部农药检定所
关键词
苯醚甲环唑; 消解动态; 残留; 水解; 半衰期;
D O I
暂无
中图分类号
S481.8 [];
学科分类号
090403 ;
摘要
采用气相色谱-电子捕获检测,对芹菜及其土壤中的苯醚甲环唑消解动态和最终残留量进行了研究,评价了苯醚甲环唑在芹菜上使用后的残留行为和环境安全性.苯醚甲环唑在芹菜及土壤中的残留消解动态均符合一级动力学方程,苯醚甲环唑在芹菜上消解快;苯醚甲环唑最终残留量与施药的剂量、施药次数及采样的间隔时间有关;水解研究表明,苯醚甲环唑是稳定的农药,在不同温度和不同pH的研究条件下水解半衰期均大于166d,碱性条件更有利于苯醚甲环唑的降解.
引用
收藏
页码:129 / 135
页数:7
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