离子液体在微萃取技术中的应用  

Application of ionic liquid in microextraction technology

作　　者：杨素萍[1] 王素利[1] 

机构地区：[1]河北北方学院,张家口075000

出　　处：《分析试验室》2013年第9期120-124,共5页Chinese Journal of Analysis Laboratory

基　　金：河北省自然科学基金项目(B2011405007)资助

摘　　要：离子液体是在室温或近于室温下呈液态的熔盐体系,由特定阳离子和阴离子构成。与传统的液态物质相比,离子液体几乎没有蒸气压、不易挥发、能溶解许多无机物和有机物。在样品前处理技术中得到了广泛的应用。微萃取技术是一种简便快速、提取效率高、溶剂用量少、环境友好的样品前处理技术。本文综述了离子液体在微萃取技术(液相微萃取和固相微萃取)中的应用。Ionic liquids are composed of specific cations and anions and they are liquid molten salts at room temperature or near the room temperature. Compared with the traditional liquid substances, ionic liquids are almost no vapor pressure and not easy to volatilize. It can dissolve many inorganic and organic compounds. Ionic liquids have been widely used in the sample pretreatment technology. Microextraction is a simple and fast, high extraction efficiency, less solvent consumption and environment friendly method in sample pretreatment. This paper reviews the application of the ionic liquids in microextraction （liquid-phase microextraction, LPME and solid-phase microextraction, SPME）.

关 键 词：离子液体 液相微萃取 固相微萃取 

分 类 号：O652.6[理学—分析化学]