Qualitative mass spectrometric analysis of the volatile fraction of creosote-treated railway wood sleepers by using comprehensive two-dimensional gas chromatography

Mateus, E, Gomes da Silva, M, Ribeiro, A and Marriott, P 2008, 'Qualitative mass spectrometric analysis of the volatile fraction of creosote-treated railway wood sleepers by using comprehensive two-dimensional gas chromatography', Journal of Chromatography A, vol. 1178, no. 12, pp. 215-222.


Document type: Journal Article
Collection: Journal Articles

Title Qualitative mass spectrometric analysis of the volatile fraction of creosote-treated railway wood sleepers by using comprehensive two-dimensional gas chromatography
Author(s) Mateus, E
Gomes da Silva, M
Ribeiro, A
Marriott, P
Year 2008
Journal name Journal of Chromatography A
Volume number 1178
Issue number 12
Start page 215
End page 222
Total pages 8
Publisher Elsevier
Abstract The volatile composition of 20-year-old out-of-service creosote-treated railway wood sleepers was studied. The emitted volatile fraction was collected by means of dynamic purge-and-trap concentration at ambient temperature, and analyzed by comprehensive two-dimensional gas chromatography (GC × GC) hyphenated with mass spectrometric detection systems, using quadrupole (GC × GC/qMS) and time-of-flight (GC × GC/ToF-MS) mass analyzers and selective nitrogen-phosphorus detection (GC × GC-NPD). The analysis of mass spectrometry data and GC × GC retention time allowed the tentative identification of about 300 compounds based on spectrometric data and positioning of each compound in the GC × GC plot. Major important headspace components are polyaromatic hydrocarbons, phenols and benzene derivatives, hydrocarbons and heterocyclic compounds containing nitrogen, sulphur or oxygen atoms. Many of the reported compounds are listed as belonging to toxicological substance classes which have been related to harmful health effects. GC × GC provides greater speciation and evidence of composition heterogenicity of the sample than one-dimensional GC analysis, thus allowing to better demonstrate its potential toxicity. Data obtained by specific detection systems for N-heterocycles assisted mass data interpretation assignments. The enhanced separation power obtained after GC × GC compared to one-dimensional gas chromatography (1D-GC) together with spectral deconvolution and correlation with physical-chemical data, allowed the identification of complex isomer clusters, as demonstrated for alkylquinolines, and applied also to alkylphenols, alkylbenzenes and alkylnaphthalenes.
Subject Instrumental Methods (excl. Immunological and Bioassay Methods)
Keyword(s) creosote
volatiles
PAHs
N-
S-
O- heterocycles
wood sleepers
GCxGC
NPD
qMS
ToF-MS
DOI - identifier 10.1016/j.chroma.2007.11.069
ISSN 0021-9673
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 21 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 19 times in Scopus Article | Citations
Altmetric details:
Access Statistics: 147 Abstract Views  -  Detailed Statistics
Created: Mon, 06 Dec 2010, 11:15:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us