摘要
建立了凝胶色谱净化-毛细管气相色谱法测定渔业污染事故水体中马拉硫磷的分析方法。样品被三氯甲烷萃取后,经凝胶渗透色谱(GPC)净化除去脂类、色素等,采用脉冲不分流进样模式,GC-FPD法分析,外标法定量。方法检测限为0.016滋g/L;加标水平为1.00滋g/L时,实际样品回收率为83.7～94.2%。该方法自动化程度高,净化效果好,重现性好,准确灵敏。实际样品检测结果表明,此方法满足复杂水体中马拉硫磷残留检测要求。
The residue of malathion in cultural water was detected by gas chromatography（ GC ） after purification with gel permeation chromatography （GPC）. The analyte was extracted with chloroform and then purified with GPC to eliminate the lipids and pigments. The collected solution was analyzed by the GC-FPD and quantified by external standard method. The detection limit of was 0.016 μg/L. The recoveries of malathion pesticide spiked at 1.00 μg/L were in the range of 83.7% to 94.2%. The results from routine sample analysis show that the method is satisfied for the determination of malathion residue in complex cultural water.
出处
《广州环境科学》
2010年第3期8-11,共4页
Guangzhou Environmental Science
关键词
凝胶渗透色谱
气相色谱
马拉硫磷
渔业污染事故
gel permeation chromatography（GPC ） gas chromatography（GC ） malathion cultural water
