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。
Traditional liquid-liquid extraction has been replaced by new environmental sample preparation techniques gradually.Liquid-phase microextraction（LPME）,liquid membrane extraction（LME） and counter-current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.
出处
《中国农学通报》
CSCD
北大核心
2011年第6期242-248,共7页
Chinese Agricultural Science Bulletin
基金
国家自然科学基金资助项目"复杂环境样品的高速逆流色谱前处理方法研究"(20877005)
关键词
环境样品
液相微萃取
液膜萃取
逆流色谱
environment sample
liquid-phase microextraction
liquid membrane extraction
counter-current chromatography
