影响精喹禾灵在土壤中降解的因素研究  

Study on Influencing Factors of Degradation of Quizalofop-p-ethyl in Soils

作　　者：王晓环[1] 王德飘 康頔[1] 吴玉娥[1] 胡德禹[1] 

机构地区：[1]贵州大学精细化工研究开发中心,贵州贵阳550025

出　　处：《辽宁化工》2016年第5期540-543,共4页Liaoning Chemical Industry

基　　金：贵州大学研究生创新基金项目(研理工2015052)资助项目

摘　　要：为探索精喹禾灵在不同土壤中降解的影响因素,采用室内模拟降解试验,建立了LC-MS/MS检测土壤中精喹禾灵残留量的方法。分别探究了土壤中以下影响因素：含水率、微生物、有机质对不同土壤中精喹禾灵降解的影响。结果表明：在0.02~2.00 mg/kg添加水平范围内精喹禾灵在土壤中的添加回收率为85.10%~97.81%,相对标准偏差（RSD）为2.81%~3.99%,土壤中持水量越高,微生物越多,有机质含量越多,精喹禾灵在土壤中的降解越快。精喹禾灵在土壤中的降解主要受微生物和有机质含量影响。In order to explore influencing factors of degradation of quizalofop-p-ethyl in different soils, indoor test scheme was designed, and a method of determining quizalofop-p-ethyl in soil was developed by high performance liquid chromatography tandem mass spectrometry. Effect of moisture content, microbe and organic matter on degradation of quizalofop-p-ethyl in soils was investigated. The results show that, when spiked level of quizalofop-p-ethyl is between 0.02-2.0 mg/kg, the recovery is 85.10%-97.81%, the relative standard deviation （RSD） is 2.81%-3.99%. The higher the organic matter, microorganism and moisture content in soil, the faster the degradation speed in the soil. The degradation speed of quizalofop-p-ethy in soil is mainly influenced by organic matter and microorganism content.

关 键 词：精喹禾灵 土壤 降解 液相色谱串联质谱法 

分 类 号：TQ450[化学工程—农药化工]