Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

A new liquid chromatography–fluorescence method for determination of perfluorooctanesulphonyl fluoride upon derivatisation with 1-naphthol

Language

English

Abstract

Perfluorooctanesulphonyl fluoride (PFOSF), as a main precursor of perfluorooctanesulphonate (PFOS) that is ubiquitous in the environment, has been released to the environment with substantial quantity. Determination of PFOSF presents significant analytical challenges for using liquid chromatography with UV (LC–UV) and fluorescence detection (LC–FLD) due to the lack of chromophore in the molecular structure. In this study, a new method was developed by derivatising PFOSF with 1-naphthol to form 1-naphthylperfluorooctanesulphonate (NPFOS), which allowed rapid qualitative and quantitative analysis using LC–UV and LC–FLD. The derivatising product was confirmed from the analyses by proton nuclear magnetic resonance and quadrupole–time of flight mass spectrometry. The LC–FLD method demonstrated good linearity in the NPFOS concentration range from 20 pg µL−1 to 20 ng µL−1 with a correlation coefficient better than 0.999, with the instrument detection limit of 1.5 pg µL−1.

Keywords

perfluorooctanesulphonyl fluoride, POPs, derivatisation, LC–FLD

Publication Date

2014

Source Publication Title

International Journal of Environmental Analytical Chemistry

Volume

94

Issue

14-15

Start Page

1388

End Page

1393

Publisher

Taylor & Francis

DOI

10.1080/03067319.2014.954563

ISSN (print)

03067319

ISSN (electronic)

10290397

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