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Quantitative determination of perfluorinated surfactants in water by LC‐ESI‐MS/MS
Author(s) -
Weremiuk Anna Maria,
Gerstmann Silke,
Frank Hartmut
Publication year - 2006
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200600041
Subject(s) - perfluorooctane , chemistry , chromatography , analyte , sulfonate , sample preparation , environmental chemistry , electrospray ionization , contamination , complex matrix , ion suppression in liquid chromatography–mass spectrometry , quantitative analysis (chemistry) , matrix (chemical analysis) , mass spectrometry , liquid chromatography–mass spectrometry , organic chemistry , ecology , biology , sodium
The surfactants perfluorooctanoate (PFOA), perfluorooctane sulfonate (PFOS), and derivatives of the latter have emerged as globally distributed persistent environmental contaminants. Methods for their reliable quantitative determination at ppt‐levels (ng/L) are needed in order to detect their main sources, to elucidate their environmental fate, and to identify potential sinks. The common method for water analysis involves preconcentration by SPE followed by LC coupled to ESI MS/MS (LC‐ESI‐MS/MS). All sample preparation steps must be carefully optimized in order to arrive at reliable quantitative data. Two major aspects are important: (i) during SPE, contaminations may arise from materials containing traces of PFOA/S; (ii) during LC‐ESI‐MS/MS, ionization yields are suppressed by matrix components and depend upon the analyte concentrations in the extracts. The levels of PFOA/S in the river Roter Main near Bayreuth have been determined using the optimized method.