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HERO ID
5080363
Reference Type
Journal Article
Title
Dispersive solid-phase extraction followed by triethylsilyl derivatization and gas chromatography mass spectrometry for perfluorocarboxylic acids determination in water samples
Author(s)
Stróżyńska, M; Schuhen, K
Year
2019
Is Peer Reviewed?
Yes
Journal
Journal of Chromatography A
ISSN:
0021-9673
EISSN:
1873-3778
Volume
1597
Page Numbers
1-8
Language
English
PMID
30878177
DOI
10.1016/j.chroma.2019.03.008
Web of Science Id
WOS:000469896000001
Abstract
A new, simple derivatization method for the determination of perfluorocarboxylic acids (PFCAs, C3-C12) in water is presented. The method is based on an acid-catalyzed esterification of perfluorinated carboxylic acids with triethylsilanol. During the reaction, a triethylsilyl ester is formed which can be easily analyzed by gas chromatography-mass spectrometry (GC-MS). The classic ion exchange solid phase extraction used for PFCAs (DIN 38407-42) has been significantly modified and adopted for the newly developed derivatization method. The new method offers a linear range from 8 to 10,000 ng l-1 for PFOA, with a limit of quantification ranging from 4 to 48 ng l-1 depending on the actual PFCA. Due to sample preparation simplicity, the presented method can be applied to form PFCAs esters prior to GC-MS analysis of water samples. The method was successfully applied in the analysis of effluents from two water treatment plants in Baden-Württemberg, Germany. Additionally, to confirm the laboratory evaluation, the standard solutions and samples were also measured by an external laboratory using LC-MS2.
Keywords
Perfluorocarboxylic acids; Derivatization; Trimethylsilanol; Gas chromatography-mass spectrometry
Tags
PFAS
•
Additional PFAS (formerly XAgency)
•
Expanded PFAS SEM (formerly PFAS 430)
Litsearch: September 2019
PubMed
Not prioritized for screening
Perfluorooctane
3-(Perfluoroisopropyl)-(2E)-difluoropropenoic acid
•
PFOA (335-67-1) and PFOS (1763-23-1)
Literature Search Update (2013-2019)
PubMed
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