Analysis of trifluoroacetic acid and other short-chain perfluorinated acids (C2-C4) in precipitation by liquid chromatography-tandem mass spectrometry: Comparison to patterns of long-chain perfluorinated acids (C5-C18)

被引：187

作者：

Taniyasu, Sachi ^{[2
]}

Kannan, Kurunthachalam ^{[1
,4
]}

Yeung, Leo W. Y. ^{[3
]}

Kwok, Karen Y. ^{[3
]}

Lam, Paul K. S. ^{[3
]}

Yamashita, Nobuyoshi ^{[2
]}

机构：

[1] SUNY Albany, Sch Publ Hlth, Wadsworth Ctr, New York State Dept Hlth, Albany, NY 12201 USA

[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058569, Japan

[3] City Univ Hong Kong, Dept Biol & Chem, Kowloon, Hong Kong, Peoples R China

[4] SUNY Albany, Sch Publ Hlth, Dept Environm Hlth Sci, Albany, NY 12201 USA

来源：

ANALYTICA CHIMICA ACTA | 2008年 / 619卷 / 02期

关键词：

trifluoroacetic acid; perfluorochemicals; perfluorooctanoic acid; rain; water; perfluorooctanesulfonate; ion exchange;

D O I：

10.1016/j.aca.2008.04.064

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method has been developed to measure 29 perfluorinated acids (PFAs) including short-chain perfluorocarboxylates (PFCAs) such as trifluoroacetic acid (TFA; C2) and long-chain PFCAs, perfluoroalkylsulfonates, fluorotelomer acids, and two perfluorooctylsulfonamides in water matrices. The method involves solid phase extraction (SPE) using a weak anion-exchange (WAX) cartridge, an ion-exchange high-performance liquid chromatography (HPLC) column separation, and tandem mass spectrometry (MS/MS) detection. To our knowledge, this is the first HPLC-MS/MS method to determine TFA in water at sub-ng L-1 concentrations. The method is selective, simple, and robust, capable of measuring 29 PFAs in a single analysis, with overall recoveries of the target analytes ranging from 75% to 132%. The method was applied to the analysis of rainwater samples collected from two cities in Japan. TFA and several short-chain PFAs were the major compounds found in rainwater. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：221 / 230

页数：10

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