Issue 1, 2015

Optimizing GC-ICP-MS for ultra-trace quantification of PBDEs in natural water samples using species-specific isotope dilution

Abstract

Due to the increased interest regarding the fate, transport and toxic effects of polybrominated diphenyl ethers (PBDEs) within the aquatic environment a variety of different methods have been reported, trying to fulfil the requirements of the European Water Framework Directive (WFD, Directive 2000/60/EC). For PBDEs the WFD specifies Environmental Quality Standards (EQS) at very low trace levels, which correspond to 0.5 ng L−1 for 6 priority brominated flame retardants. The reliable quantification of such low concentration levels in environmental sample matrices requires the development of new analytical approaches. Current standard GC-MS methods, which are frequently used for PBDE analysis, often do not provide sufficient sensitivity for their reliable analysis at ultra-trace levels. Within this context a new GC-ICP-MS method has been developed and optimized allowing the ultra-trace determination of the selected priority congeners at sub ng L−1 levels. The quantification approach is based on the application of 81Br labelled PBDEs as internal standards for species-specific isotope dilution analysis. Natural water samples were analysed to demonstrate the potential of this new detection and quantification approach.

Graphical abstract: Optimizing GC-ICP-MS for ultra-trace quantification of PBDEs in natural water samples using species-specific isotope dilution

Supplementary files

Article information

Article type
Paper
Submitted
01 Apr. 2014
Accepted
26 Jūn. 2014
First published
26 Jūn. 2014
This article is Open Access
Creative Commons BY-NC license

J. Anal. At. Spectrom., 2015,30, 180-190

Author version available

Optimizing GC-ICP-MS for ultra-trace quantification of PBDEs in natural water samples using species-specific isotope dilution

A. González-Gago, D. Pröfrock and A. Prange, J. Anal. At. Spectrom., 2015, 30, 180 DOI: 10.1039/C4JA00112E

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