岩矿测试2009，Vol.28Issue(6)：541-544,4.
超声提取-固相萃取小柱净化-气相色谱法测定土壤中14种有机氯农药
Determination of Organochlorine Pesticides in Soil Samples by Gas Chromatography with Ultrasonic Extraction and Solid Phase Extraction
摘要
Abstract
In this paper sample pretreatment techniques including ultrasonic extraction and decontamination techniques of sulfonation and solid phase extraction (SPE) for determination of organochlorine pesticided in soil samples by gas chromatography were presented. The results show that ultrasonic extraction could save the sample treatment time and improve the efficiency of sample analysis. And both of the sulfonation and SPE provide better decontamination effect. But aldrin, dieldrin and endrin in the samples would be lost when sulfonation method was used. Under the optimized condition of acetone/n-hexane = 1 : 9 and using 8 mL leaching solution in SPE decontamination, the recovery of the analytes was better than 90% and with less interference. Detection limits of the method for organochlorine pesticides were 0.63～2.59 μg/kg and average recovery was 82.78%～106.94% with precision of 1.17%～14.66% RSD (n=7). The method has been successfully applied to the determination of organochlorine pesticides in soil samples in Eco-geochemical Investigation and Assessment Program.关键词
有机氯农药/超声提取/磺化/固相萃取/气相色谱法/土壤Key words
organoehlorine pesticides/ ultrasonic extraction/ sulfonation/ solid phase extraction/ gas chromatography/ soil分类
化学化工引用本文复制引用
刘文长,陶文靖,程丽娅,余兴,田旻,黄勤,李胜生..超声提取-固相萃取小柱净化-气相色谱法测定土壤中14种有机氯农药[J].岩矿测试,2009,28(6):541-544,4.基金项目
国土资源部地质大调查项目资助(1212010511218) （1212010511218）
