华南农业大学学报2017，Vol.38Issue(6)：79-83,5.DOI:10.7671/j.issn.1001-411X.2017.06.012
QuEChERS-GC-MS法检测当归中 9种除草剂残留
Detection of nine herbicide residues in Angelica sinensis by QuEChERS-GC-MS
摘要
Abstract
[Objective]To establish a method for analyzing herbicide residues in Angelica sinensis.[Method]The residues of nine herbicides, including fenamine, clomazone, acetochlor, prometryn, metolachlor, pendimethalin, butachlor, pretilachlor and oxyfluorfen were analyzed by QuEChERS combined with GC-MS. Samples were extracted with acetonitrile and cleaned up using primary secondary amine (PSA) and graphitized carbon black (GCB). Nine herbicides were detected using the selective ion monitoring (SIM) mode and quantified with external standards. Parameters which influenced extraction and purification efficiency were optimized. [Result]There were good linear relationships between herbicide concentration and detected peak area within the range from 0.01 to 5.00 mg·L-1 for all nine herbicides. The average recovery rates of nine herbicides in A. sinensis were from 74.58% to 96.37% at the addition levels of 0.01 and 0.10 mg·kg-1, with relative standard deviation less than 11.73%. The detection limits of nine herbicides were from 0.52 to 6.60μg·kg-1.[Conclusion]This detection method is simple, fast and effective, and can be used practically to detect a variety of herbicides in A. sinensis samples.关键词
QuEChERS/除草剂/当归/气相色谱-质谱/农药残留Key words
QuEChERS/herbicide/Angelica sinensis/GC-MS/pesticide residue分类
农业科技引用本文复制引用
方旭元,夏高峰,石巧巧,何灿,杨晓云,徐汉虹..QuEChERS-GC-MS法检测当归中 9种除草剂残留[J].华南农业大学学报,2017,38(6):79-83,5.基金项目
广州市科技计划项目(1515000259) （1515000259）
