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Position: Home > Articles > Review of New Pretreatment Methods for Environmental Sample Based on Liquid-Liquid Extraction Mechanism Chinese Agricultural Science Bulletin 2011,27 (6) 242-248

基于液-液萃取机理的新型环境样品前处理方法研究进展

作  者:
杨春蕾;曹学丽
单  位:
北京工商大学北京市植物资源研究开发重点实验室
关键词:
环境样品;液相微萃取;液膜萃取;逆流色谱
摘  要:
新型环境样品前处理技术已经逐步取代传统液-液萃取。液相微萃取、液膜萃取和逆流色谱技术均是集采样、萃取和浓缩于一体的环境友好型环境样品前处理技术。液相微萃取、液膜萃取实质上是微型化的液-液萃取;逆流色谱结合了液液萃取和分配色谱的优点,是一种新型色谱分离技术。3种技术均对环境样品中的痕量/超痕量污染物质有高效的富集、净化效果。笔者综述了液相微萃取、液膜萃取和逆流色谱技术的优缺点及在环境样品前处理中的应用。
译  名:
Review of New Pretreatment Methods for Environmental Sample Based on Liquid-Liquid Extraction Mechanism
作  者:
Yang Chunlei,Cao Xueli(Beijing Key Laboratory of Plant Resource Research Development,Beijing Technology and Business University,Beijing 100037)
关键词:
environment sample;liquid-phase microextraction;liquid membrane extraction;counter-current chromatography
摘  要:
Traditional liquid-liquid extraction has been replaced by new environmental sample preparation techniques gradually.Liquid-phase microextraction(LPME),liquid membrane extraction(LME) and counter-current chromatography(CCC) are environment-friendly pretreatment techniques for environment sample which complete sampling,extracting and concentration in one step.LPME and LME are essentially miniaturized liquid-liquid extraction;CCC combines advantages of liquid-liquid extraction and partition chromatography as a new type of chromatographic separation techniques.All three techniques have high efficiency in trace/ultra-trace enriching and purification.The review introduced advantages and disadvantages of LPME,LME and CCC and their application in environment sample.

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