岩矿测试2012，Vol.31Issue(5)：877-883,7.
气相动态顶空进样-气相色谱-质谱法同时分析饮用水源水中57种挥发性有机物
Simultaneous Determination of 57 Kinds of Volatile Organic Compounds in Drinking Water Using A Dynamic Headspace Sampling Method Coupled to Gas Chromatography-Mass Spectrometry
赖永忠 1季彦鋆2
作者信息
- 1. 汕头市环境保护监测站,广东汕头515041
- 2. 上海市嘉定区环境监测站,上海201822
- 折叠
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 jxg/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
饮用水源水/挥发性有机物/气相动态顶空进样/气相色谱-质谱法Key words
soil/ organochlorines/ organophosphorus/ accelerated solvent extraction/ Gas Chromatography分类
资源环境引用本文复制引用
赖永忠,季彦鋆..气相动态顶空进样-气相色谱-质谱法同时分析饮用水源水中57种挥发性有机物[J].岩矿测试,2012,31(5):877-883,7.
