凝胶渗透色谱净化-气质联用法测定土壤中三嗪类除草剂  

Determination of triazine herbicides in soil by gel permeation chromatography and gas chromatography/mass spectrometry

作　　者：聂志强[1] 李卫建[1] 刘潇威[1] 王璐[1] 李红[1] 罗铭[1] 秦莉[1] 

机构地区：[1]农业部环境保护科研监测所,天津300191

出　　处：《分析试验室》2008年第12期80-83,共4页Chinese Journal of Analysis Laboratory

基　　金：中央级公益性科研院所基本科研业务费专项基金(农业部环境保护科研监测所;2007-lwj-12)项目资助

摘　　要：建立了以超声波提取、凝胶渗透色谱净化（GPC）、HP．5MS石英毛细管柱分离、EI离子源质谱法测定土壤中13种三嗪类除草剂的多残留检测方法。三嗪类除草剂的添加水平为0．010～0．100mg／kg时，平均回收率为72．1％～118．3％，相对标准偏差为2．6％～19．8％（n=4）；方法的检出限为0．30—2．50ug／kg。A multi-residue analysis method was developed for triazine herbicides in soil using gas chromatography with electron impact ionization mass spectrometric determination. The samples were extracted with ultrasonic extraction and separated by capillary column, then cleaned up by gel permeation chromatography. The average recoveries were from 72.1% to 118.3%, and the relative standard deviations from 2.6% to 19.8% （n = 4） with spiked triazine herbicides at levels of 0.010 - 0.100 mg/kg in blank samples. The limits of detection （LOD） were from 0.30 to 2.5 ug/kg.

关 键 词：土壤 三嗪除草剂 凝胶渗透色谱 气质联用 

分 类 号：O657.63[理学—分析化学]