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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)
National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki, Japan.
Wadsworth Center, New York State Department of Health, Department of Environmental Health Sciences, Albany, NY, United States.
Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.ORCID-id: 0000-0001-6800-5658
Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.
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2008 (Engelska)Ingår i: Analytica Chimica Acta, ISSN 0003-2670, E-ISSN 1873-4324, Vol. 619, nr 2, s. 221-230Artikel i tidskrift (Refereegranskat) Published
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Abstract [en]

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.

Ort, förlag, år, upplaga, sidor
Elsevier, 2008. Vol. 619, nr 2, s. 221-230
Nyckelord [en]
Ion exchange; Perfluorochemicals; Perfluorooctanesulfonate; Perfluorooctanoic acid; Rain; Trifluoroacetic acid; Water
Nationell ämneskategori
Miljövetenskap Kemi
Forskningsämne
Miljövetenskap; Kemi
Identifikatorer
URN: urn:nbn:se:oru:diva-50001DOI: 10.1016/j.aca.2008.04.064ISI: 000257644100010PubMedID: 18558116Scopus ID: 2-s2.0-45049086221OAI: oai:DiVA.org:oru-50001DiVA, id: diva2:950402
Tillgänglig från: 2016-07-29 Skapad: 2016-04-28 Senast uppdaterad: 2017-11-28Bibliografiskt granskad

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Yeung, Leo W. Y.Lam, Paul K. S.

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