分析化学2012，Vol.40Issue(8)：1213-1218,6.DOI:10.3724/SP.J.1096.2012.11453
全二维气相色谱-电子捕获检测器法分析土壤中毒杀芬同类物的残留
Comprehensive Two-dimensional Gas Chromatography with Micro-electron Capture Detector for Analysis of Toxaphene Congeners in Soil
摘要
Abstract
A comprehensive two dimensional gas chromatography coupled with micro-electron capture detector (GC×GC-μECD) method for the simultaneous analysis of 23 congeners of toxaphene in soil has been developed and validated. A DB-XLB column (20 m×0. 25 mm×0. 25 μm) was chosen as the column for the first dimension, and a BPX-50 column (2 m×0. 1 mm×0. 1 μm) was chosen as the column for the second dimension. The matrix-matched external standard calibration curves were used for quantitative analysis. The established method showed good linearity with correlation coefficients (r2) higher than 0. 99 in the concentration range of 1-200 μg/L. Limits of detection ranged from 0. 039 to 0. 482 μg/L for individual congeners. The relative standard deviations (RSD) of all 23 toxaphene congeners in matrix spiked samples were below 30% (n = 5), and recoveries ranged from 55% to 115%. For validation, the developed method was applied to the determination of toxaphene in a soil sample.关键词
全二维气相色谱/电子捕获检测器/毒杀芬/持久性有机污染物Key words
Comprehensive two dimensional gas chromatography/ Electron capture detector/ Toxaphene/ Persistent organic pollutants引用本文复制引用
张兵,郑明辉,刘国瑞,李成,高丽荣..全二维气相色谱-电子捕获检测器法分析土壤中毒杀芬同类物的残留[J].分析化学,2012,40(8):1213-1218,6.基金项目
本文系中国科学院知识创新工程重要方向项目(No.KZCX2-YW-JS406)、环保公益性行业科研专项项目(No.200909096)和中国科技部基础项目(No.2008FY210100)资助 （No.KZCX2-YW-JS406）
