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Gewählte Publikation:

Vasilieva, V; Scherr, KE; Edelmann, E; Hasinger, M; Loibner, AP.
(2012): Comprehensive GC(2)/MS for the monitoring of aromatic tar oil constituents during biodegradation in a historically contaminated soil.
J Biotechnol. 2012; 157(4):460-466 FullText FullText_BOKU

The constituents of tar oil comprise a wide range of physico-chemically heterogeneous pollutants of environmental concern. Besides the sixteen polycyclic aromatic hydrocarbons defined as priority pollutants by the US-EPA (EPA-PAHs), a wide range of substituted (NSO-PAC) and alkylated (alkyl-PAC) aromatic tar oil compounds are gaining increased attention for their toxic, carcinogenic, mutagenic and/or teratogenic properties. Investigations on tar oil biodegradation in soil are in part hampered by the absence of an efficient analytical tool for the simultaneous analysis of this wide range of compounds with dissimilar analytical properties. Therefore, the present study sets out to explore the applicability of comprehensive two-dimensional gas chromatography (GC(2)/MS) for the simultaneous measurement of compounds with differing polarity or that are co-eluting in one-dimensional systems. Aerobic tar oil biodegradation in a historically contaminated soil was analyzed over 56 days in lab-scale bioslurry tests. Forty-three aromatic compounds were identified with GC(2)/MS in one single analysis. The number of alkyl chains on a molecule was found to prime over alkyl chain length in hampering compound biodegradation. In most cases, substitution of carbon with nitrogen and oxygen was related to increased compound degradation in comparison to unalkylated and sulphur- or unsubstituted PAH with a similar ring number. The obtained results indicate that GC(2)/MS can be employed for the rapid assessment of a large variety of structurally heterogeneous environmental contaminants. Its application can contribute to facilitate site assessment, development and control of microbial cleanup technologies for tar oil contaminated sites. (C) 2011 Elsevier B.V. All rights reserved.
Autor*innen der BOKU Wien:
Brandstätter-Scherr Kerstin
Edelmann Eva
Loibner Andreas Paul
Sumetzberger-Hasinger Marion
Vasilieva Viktoriya

Find related publications in this database (Keywords)
Tar oil
Heterocyclic aromatic hydrocarbons
Polycyclic aromatic hydrocarbons
Alkylated aromatic compounds
Contaminated soil
Comprehensive GCxGC/MS

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