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Geißler, R. ; Saraji-Bozorgzad, M.R. ; Streibel, T. ; Kaisersberger, E.* ; Denner, T.* ; Zimmermann, R.

Investigation of different crude oils applying thermal analysis/mass spectrometry with soft photoionisation.

J. Therm. Anal. Calorim. 96, 813-820 (2009)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
A variety of crude oil samples have been investigated by the combined methods of thermal analysis and mass spectrometry by means of a newly developed prototype of a thermogravimetry-single photon ionisation time-of-flight mass spectrometer coupling (TG-SPI-TOFMS). Single photon ionisation (SPI) was conducted utilising a novel electron beam pumped argon excimer lamp (EBEL) as photon source, and a TOFMS with orthogonal acceleration has been applied for the detection of the mass to charge signals. The advantage of the soft SPI technique over EI for the analysis of such complex samples could be clearly demonstrated, as the aliphatic hydrocarbons present in crude oil may be detected via their respective molecular ion signals, not showing the intense fragmentation typical for EI spectra of this substance class. The application of SPI revealed furthermore two distinct decomposition regions, dominated by evaporation and pyrolysis processes, respectively. Moreover, different crude oils could be distinguished by TA/SPI mass spectra due to their unique molecular signatures.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Crude oil; EBEL; Evolved gas analysis; Single photon ionisation; Soft ionisation; Thermal analysis; Time-of-flight mass spectrometry; single-photon ionization; flight mass-spectrometry; excimer light-source; gas-chromatography; thermogravimetry; pyrolysis; mixtures; kinetics; combustion; Single-photon Ionization; Flight Mass-spectrometry; Excimer Light-source; Gas-chromatography; Thermogravimetry; Pyrolysis; Mixtures; Kinetics; Combustion
ISSN (print) / ISBN 1388-6150
e-ISSN 1588-2926
Journal Journal of Thermal Analysis and Calorimetry
Quellenangaben Volume: 96, Issue: 3, Pages: 813-820 Article Number: , Supplement: ,
Publisher Springer
Publishing Place Berlin [u.a.]
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Institute of Ecological Chemistry (IOEC)
Cooperation Group Comprehensive Molecular Analytics (CMA)