岩矿测试2012，Vol.31Issue(6)：1033-1036,4.
加速溶剂提取-气相色谱法同时测定土壤中的22种有机氯和有机磷农药
Determination of Organochlorines and Organophosphorus in Soil by Accelerated Solvent Extraction-Gas Chromatography
摘要
Abstract
A large number of measurement work on organochlorine and organophosphorus pesticide residue in soil was carried out in China' s environmental pollution survey evaluation and test project. The simultaneous measurements of a variety of organic pollutants were a new research hotspot. In this study, the pesticide residues of 9 kinds of organochlorine such as hexachlorobenzene and 13 kinds of organophosphorus such as dichlorvos were simultaneously measured by Gas Chromatography with n-hexane-acetone (volume ratio 1 : 1) for extracting agent, the accelerated solvent extraction and capillary column. The recoveries were from 79. 1% to 107. 7% , relative standard deviations were from 3. 62% to 9. 94% (n =7) and detection limits were from 0. 02 to 0. 45 (xg/kg. This method simultaneously extracted the two kinds of pesticides and completely separated the various components, which extended the application field. Comparing with the traditional ultrasonic extraction and Soxhlet extraction method, extracting time of this method was reduced to 20 min and extraction solvent volume was down to 50 mL, which saved the analytical time and reduced the cost. Meanwhile, the precisions and recoveries met the requirements of the national environmental pollution survey and assessment.关键词
土壤/有机氯农药/有机磷农药/加速溶剂提取/气相色谱法Key words
soil/ organochlorines/ organophosphorus/ accelerated solvent extraction/ Gas Chromatography分类
农业科技引用本文复制引用
肖刚..加速溶剂提取-气相色谱法同时测定土壤中的22种有机氯和有机磷农药[J].岩矿测试,2012,31(6):1033-1036,4.基金项目
中国地质大调查项目(1212010913004) （1212010913004）
