全氟和多氟烷基化合物异构体的分析方法、环境行为和生物效应研究进展
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摘要
全氟和多氟烷基化合物(Per-and polyfluoroalkyl substances,PFASs)是一类人为源的有机污染物,普遍具有环境持久性、生物富集性和潜在毒性.环境中的PFASs存在直链和多种支链异构体,各种异构体的环境界面行为以及生物富集、代谢和毒性效应存在显著差异.只有从单个异构体的角度进行分析,才能准确评估PFASs潜在的生态和健康风险.本文对PFAS异构体的来源、命名和分析方法进行了介绍,总结了PFAS异构体在不同介质中的环境行为和生物效应研究的最新进展,有助于全面认识环境中PFASs的迁移转化规律及最终归趋.
Per-and polyfluoroalkyl substances( PFASs) are a group of anthropogenic organic pollutants that have received great scientific attention due to their environmental persistence,bioaccumulation and potential toxicity. PFASs comprise linear and branched isomers,which show significantly different interfacial transport,bioaccumulation,metabolism and toxicity properties. In order to make accurate environmental and health risk assessment,it is essential to achieve isomerspecific analysis of PFASs. In this paper,the sources,nomenclature and analytical methods of PFAS isomers were introduced,and the new progress on the environmental behaviors and biological effects of PFAS isomers were reviewed. This paper is expected to be helpful in the comprehensive understanding of the transport and fate of PFASs in the environment.
Per-and polyfluoroalkyl substances( PFASs) are a group of anthropogenic organic pollutants that have received great scientific attention due to their environmental persistence,bioaccumulation and potential toxicity. PFASs comprise linear and branched isomers,which show significantly different interfacial transport,bioaccumulation,metabolism and toxicity properties. In order to make accurate environmental and health risk assessment,it is essential to achieve isomerspecific analysis of PFASs. In this paper,the sources,nomenclature and analytical methods of PFAS isomers were introduced,and the new progress on the environmental behaviors and biological effects of PFAS isomers were reviewed. This paper is expected to be helpful in the comprehensive understanding of the transport and fate of PFASs in the environment.
引文
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[20] BASTOS J K,FREITAS L A P,PAGLIARUSSI R S,et al. A rapid quantitative method for the analysis of sulfluramid and its isomers in ant bait by capillary column gas chromatography[J]. Journal of Separation Science,2001,24(5):406-410.
[21] DE SILVA A O,MABURY S A. Isolating isomers of perfluorocarboxylates in polar bears(Ursus maritimus)from two geographical locations[J]. Environmental Science&Technology,2004,38(24):6538-6545.
[22] CHU S,LETCHER R J. Linear and branched perfluorooctane sulfonate isomers in technical product and environmental samples by in-port derivatization-gas chromatography-mass spectrometry[J]. Analytical Chemistry,2009,81(11):4256-4262.
[23] LANGLOIS I,OEHME M. Structural identification of isomers present in technical perfluorooctane sulfonate by tandem mass spectrometry[J]. Rapid Communications in Mass Spectrometry,2006,20(5):844-850.
[24] BENSKIN J P,IKONOMOU M G,WOUDNEH M B,et al. Rapid characterization of perfluoralkyl carboxylate,sulfonate,and sulfonamide isomers by high-performance liquid chromatography-tandem mass spectrometry[J]. Journal of Chromatography A,2012,1247:165-170.
[25]牛夏梦,史亚利,张春晖,等.全氟辛烷磺酸和全氟辛烷羧酸异构体的高效液相色谱-串联质谱联用分析方法[J].环境化学,2015,34(8):1453-1459.NIU X M,SHI Y L,ZHANG C H,et al. Simulatneous determination of perfluorooctane sulfonate and perfluorooctanoic acid isomers by HPLC-MS/MS[J]. Environmental Chemistry,2015,34(8):1453-1459(in Chinese).
[26] RIDDELL N,ARSENAULT G,BENSKIN J P,et al. Branched perfluorooctane sulfonate isomer quantification and characterization in blood serum samples by HPLC/ESI-MS(/MS)[J]. Environmental Science&Technology,2009,43(20):7902-7908.
[27] ZHANG H N,WEN B,WEN W,et al. Determination of perfluoroalkyl acid isomers in biosolids,biosolids-amended soils and plants using ultra-high performance liquid chromatography tandem mass spectrometry[J]. Journal of Chromatography B,2018,1072:25-33.
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[29] BENSKIN J P,AHRENS L,MUIR D C G,et al. Manufacturing origin of perfluorooctanoate(PFOA)in Atlantic and Canadian Arctic seawater[J]. Environmental Science&Technology,2012,46(2):677-685.
[30] CHEN X W,ZHU L Y,PAN X Y,et al. Isomeric specific partitioning behaviors of perfluoroalkyl substances in water dissolved phase,suspended particulate matters and sediments in Liao River Basin and Taihu Lake,China[J]. Water Research,2015,80:235-244.
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[32] DE SILVA A O,MUIR D C G,MABURY S A. Distribution of perfluorocarboxylate isomers in select samples from the North American environment[J]. Environmental Toxicology and Chemistry,2009,28(9):1801-1814.
[33] HOUDE M,CZUB G,SMALL J M,et al. Fractionation and bioaccumulation of perfluorooctane sulfonate(PFOS)isomers in a Lake Ontario food web[J]. Environmental Science&Technology,2008,42(24):9397-9403.
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