农业资源与环境学报Issue(4)：388-392,5.DOI:10.13254/j.jare.2014.0079
小麦田土壤中炔草酯GC-ECD检测方法研究及残留行为特征
Detection Method and Residual Behavior of Clodinafop-propargyl by GC-ECD in Wheat Soil
摘要
Abstract
GC-ECD method was developed for the determination of clodinafop-propargyl in wheat soil.The soil samples were extracted with acetonitrile.The linearity of the GC-ECD method was satisfied(R2=0.999 4)in the concentration range of 0.01~2.0 mg·kg-1. The average recov-eries in soil were 95.91%, 89.50%and 75.35%, respectively, the coefficients of variation were 2.66%, 7.64%和4.23%, by adding clodi-nafop-propargyl into wheat soil at three concentration levels(0.01, 0.1, 0.5 mg·kg-1).The limit of quantification in soil was 0.01 mg·kg-1. The detection results showed that GC-ECD method was economic and accurate whose pretreatment was simple and rapid. Two years field experi-ments in Shandong Province and Hunan Province revealed that the residue of degradation dynamics in 30 d were more than 99%, and the half-life of clodinafop-propargyl were 2.7~3.9 d.关键词
GC-ECD/土壤/炔草酯/残留/消解动态Key words
GC-ECD/soil/clodinafop-propargyl/residue/degradation dynamic分类
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郭玉香,刘金彪..小麦田土壤中炔草酯GC-ECD检测方法研究及残留行为特征[J].农业资源与环境学报,2014,(4):388-392,5.基金项目
农业部农药残留试验资助项目 （）
