安徽农业科学2016，Vol.44Issue(36)：168-170,3.
固相萃取－气相色谱法测定小麦粉中六六六和滴滴涕残留量
Determination of BHC and DDT Pesticide Residues in Wheat Flour by Solid-phase Extraction and Capillary Gas Chromatography
梁瑞 1段兰萍 1赵静 1吴旭妍 1廖若宇1
作者信息
- 1. 宁夏粮油产品质量检测中心，宁夏银川750002
- 折叠
摘要
Abstract
Objective] A capillary gas chromatography method was developed for determination of BHC and DDT pesticide residues in wheat flour.[ Method] The pesticide residues in the samples were extracted by ultrasonic assisting oscillation and using acetonitrile as extraction agent . The extract solution was purified by Carbon NH2 Cartridges and eluted with the mixture of acetonitrile-toluene (3+1, V/V) .Finally, the target components were determined using electron capture detector (ECD) after separated from each other through HP-1 capillary column.[Result] The calibration curves were linear in the range of 0.005-0.400 μg/mL with the correlations coefficients of 0.998 6-0.999 5.The recoveries for BHC and DDT in three added levels were in the range of 80.21%-113.41%.The relative standard deviations were 1.30%-4.33%(n=6).The limits of detection (LODs) were in the range of 0.10-1.51μg/kg.[Conclusion] The method is simple, sensitive, less reagent and reproducible, and it is suitable for quantitative and qualitative analysis of BHC and DDT in wheat flour .关键词
六六六/滴滴涕/固相萃取/毛细管气相色谱法/小麦粉Key words
BHC/DDT/Solid-phase extraction/Capillary gas chromatography/Wheat flour分类
农业科技引用本文复制引用
梁瑞,段兰萍,赵静,吴旭妍,廖若宇..固相萃取－气相色谱法测定小麦粉中六六六和滴滴涕残留量[J].安徽农业科学,2016,44(36):168-170,3.
