短链氯化石蜡分析方法

短链氯化石蜡作为一类新型持久性有机污染物已经引起全球的关注,我国是氯化石蜡第一大生产国,但对其研究还处于起步阶段。氯化石蜡组成特别复杂,其定量分析面临巨大的挑战,已成为对氯化石蜡环境存在现状、降解途径以及毒性等进一步研究的瓶颈问题。本文从环境样品的制备、净化、仪器分析以及质量保证4个方面对国际上短链氯化石蜡分析方法的研究进行了评述,针对短链氯化石蜡的分析方法同样适用于中链氯化石蜡。

Advances in the Analysis of Short Chain Chlorinated Paraffins

Short chain chlorinated paraffins (SCCPs) are one new kind of extremely complex persistent organic pollutants and have attracted extensive concerns worldwide. The research on SCCPs is at infant stage, although China is the largest producer of chlorinated paraffins in the world. The accurate quantification of SCCPs is a challenge and has become the bottleneck for the further studies on the environmental behavior and toxicology. This paper reviews the current analytical tools available for the determination of SCCPs, focusing on the sample extraction, cleanup and quality assurance, especially on the instrumental analysis. The analytical methods described for the SCCPs can also be applied for the middle chain chlorinated paraffins.Contents
1 Introduction
2 Sample preparation
2.1 Extraction
2.2 Cleanup
3 Instrumental analysis
3.1 Separation using gas chromatography
3.2 Separation using liquid chromatography
3.3 Detectors
4 Quality assurance
5 Conclusion and outlook