期刊论文

中文

农药

1006-0413

2015

54

2

126-128,138

10.16820/j.cnki.1006-0413.2015.02.014

国家农业部农药残留标准制定项目（2013F365）；

本校为第一机构

[目的]建立肟菌酯在辣椒和土壤中的残留分析方法,研究肟菌酯在辣椒和土壤中的残留消解动态。[方法]采用乙腈提取,盐析法净化,GC-ECD检测,外标法定量。[结果]当添加质量分数为0.03 ~ 1.00mg/kg时,肟菌酯在辣椒和土壤中的回收率为89.9% ~ 104.9%,相对标准偏差为1.1% ~ 5.1%。消解动态试验表明,肟菌酯在辣椒和土壤中的消解动态曲线符合一级动力学方程,其在长沙、青岛和杭州3地的辣椒和土壤中的半衰期为4.08 ~ 17.33 d,均小于30d。 [结论]肟菌酯属易降解农药。

[Aims] The method was established to determine the residues of trifloxystrobin in chilli and soil. In addition, the degradation dynamics of trifloxystrobin in chilli and soil were investigated. [Methods] The residues in soil and chilli were extracted with acetontrile and cleaned up by salting out with sodium chloride. Trifloxystrobin was determined by gas chromatograph-electron capture detector （GC-ECD） and the quantification was performed by external standard method. [Results] As the spiked levels of 0.03-1.00 mg/L, the average recoveries of...