Separation and preconcentration of persistent organic pollutants by cloud point extraction.
Separation and preconcentration of persistent organic pollutants by cloud point extraction.
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DOI：
10.1016/j.chroma.2009.11.075
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发表时间：
2010-04
期刊：
影响因子：
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通讯作者：
Shunping Xie;M. C. Paau;Cheuk Fai Li;D. Xiao;Martin M. F. Choi
中科院分区：
文献类型：
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作者：
Shunping Xie;M. C. Paau;Cheuk Fai Li;D. Xiao;Martin M. F. Choi
持久性有机污染物（POPs）被认为是一类有毒化合物，有可能对人类健康和环境造成不利影响。因此，在环境和生物样品中检测持久性有机污染物是非常重要的。鉴定和确定复杂基质中持久性有机污染物的极低水平是极其困难的。最近，一种基于云点萃取（CPE）的环境友好的萃取和预富集方法已成为测定复杂基质中痕量/超痕量持久性有机污染物的有效样品前处理技术。本文的目的是回顾过去和最新的使用CPE预浓缩持久性有机污染物及其耦合不同的当代仪器分析方法。首先，介绍了各种持久性有机污染物提取技术的比较。其次，概述和描述了与CPE技术相关的一般概念、影响因素和其他方法。最后，总结和讨论了CPE与各种仪器测定方法的区别。
Persistent organic pollutants (POPs) are recognized as a class of poisonous compounds which pose risks of causing adverse effects to human health and the environment. Thus, it is very important to detect POPs in environmental and biological samples. The identification and determination of very low levels of POPs in complex matrices is extremely difficult. Recently a promising environmentally benign extraction and preconcentration methodology based on cloud point extraction (CPE) has emerged as an efficient sample pretreatment technique for the determination of trace/ultra-trace POPs in complex matrices. The purpose of this paper is to review the past and latest use of CPE for preconcentrating POPs and its coupling to different contemporary instrumental methods of analysis. First, the comparison of various extraction techniques for POPs is described. Next, the general concept, influence factors and other methods associated with CPE technique are outlined and described. Last, the hyphenations of CPE to various instrumental methods for their determination are summarized and discussed.