Original scientific paper

https://doi.org/10.5562/cca1798

Application of Gas Chromatography to Determination of Total Organic Fluorine after Defluorination of Perfluorooctanoic Acid as a Model Compound

Mariusz Koc ; Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
Magdalena Anna Donten ; Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
Jacek Musijowski ; Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
Xinghua Guo ; Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Graz, Austria
Alexander Fauland ; Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Graz, Austria
Ernst Lankmayr ; Institute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Graz, Austria
Marek Trojanowicz ; Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland

Abstract

Because of the global presence of anthropogenic perfluorinated organic compounds in the environment,
foods and living organisms, and their large structural variety, it can be helpful to develop a method
for determination of their total content at trace level in different matrices. In the developed method,
the defluorination was carried with sodium biphenyl, derivatization of released fluoride to triphenylfluorosilane
and determination by gas chromatography. Three detection methods were compared: flameionization
detection, electron capture detection and mass spectrometry. Among them the MS detection
was found to be the most favorable one in terms of the instrumental limit of detection (LOD) , whereas the
flame-ionization detection was considered to be the most favorable in terms of the method limit of detection
(MDL). For the initial sample volume of 1 L and performing the whole procedure of determination,
including preconcentration, the MDL value for perfluorooctanoic acid was evaluated as 0.043 ppb. (doi: 10.5562/cca1798)

Keywords

perfluorinated organic compounds; surfactants; gas chromatography; total organic fluorine

Hrčak ID:

74779

URI

https://hrcak.srce.hr/74779

Publication date:

13.11.2011.

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