期刊论文

Residues and Degradation Dynamics of Flutriafol in Wheat Field

中文

农药科学与管理

1002-5480

2018

39

6

35-40,50

10.3969/j.issn.1002-5480.2018.06.010

湖南省自然科学基金青年基金项目（2017JJ3165） 湖南省研究生科研创新项目（CX20178351）.

本校为第一机构

为评价粉唑醇在小麦田中的安全性,建立气相色谱-质谱(GC-MS)联用方法测定了小麦田中粉唑醇的残留量,对粉唑醇在土壤、植株中的消解动态以及土壤、植株、麦粒和麦壳中粉唑醇的最终残留进行了研究.样品经乙腈提取、PSA净化后,GC-MS检测,添加回收试验结果表明:粉唑醇在土壤、植株、麦粒及麦壳中的平均回收率在77.6％～95.5％之间,相对标准偏差(RSD)为4.4％～12.2％,粉唑醇的最小检出量为1.0×10-11g,最低检测浓度均为0.05 mg/kg;消解动态试验结果表明,粉唑醇在土壤、植株中的消解动态符合一级动力学方程,其半衰期分别为1.8～7.4 d和3.2～5.1 d;最终残留试验结果表明,距最后1次施药30 d后,粉唑醇在麦...

To evaluate the safety of flutriafol in wheat fields, the gas chromatography-mass spectrography （GC-MS） method was established to determinate the residues of flutriafol in wheat fields, and flutriafol dissipation dynamics in soil, wheat plant and the final residue of flutriafol in soil, wheat plant, wheat hull and wheat grain were studied. After the samples were extracted by acetonitrile and purified by PSA, the residue was determined by GC-MS. The results showed that the average recoveries of flutriafol in soil, wheat plant, wheat grain and ...