浊点萃取技术在环境样品痕量元素分析中的应用研究进展

Progress and application of cloud point extraction in the analysis of trace elements in environmental samples

浊点萃取法是近年来发展起来的一种绿色环保的样品前处理技术.本文详细介绍了浊点萃取方法的原理,对国内外近5年来(2008年—至今)利用浊点萃取与几种常见的原子光谱分析仪器以及与电感耦合等离子体质谱仪联用技术,在环境样品中痕量元素分离和富集以及形态分析中的应用研究进展进行了评述.同时对浊点萃取技术目前的最新发展方向、尚存在的问题以及发展前景进行了逐一探讨.

Cloud point extraction method developed in the recent years is a green sample preparation technique.This paper introduces the principle of cloud point extraction method,the main influence factors about cloud point extraction in detail.Recent development on the deternination of trace elements or speciation by cloud point extraction coupled to atomic spectrometry and inductively coupled plasma mass spectrometry since 2008 are summarized and discussed.At the same time,existing problems,the newest development trend and prospects for cloud point extraction technique are also discussed.