Reference : Enhanced Characterization of the Smell of Death by Comprehensive Two-Dimensional Gas ...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/125811
Enhanced Characterization of the Smell of Death by Comprehensive Two-Dimensional Gas Chromatography-Time-of-Flight Mass Spectrometry (GCxGC-TOFMS)
English
Dekeirsschieter, Jessica mailto [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Stefanuto, Pierre-Hugues mailto [Université de Liège - ULg > Département de chimie (sciences) > Chimie analytique, organique et biologique >]
Brasseur, Catherine mailto [Université de Liège - ULg > Département de chimie (sciences) > GIGA-R : Laboratoire de spectrométrie de masse (L.S.M.) >]
Haubruge, Eric mailto [Université de Liège - ULg > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech >]
Focant, Jean-François mailto [Université de Liège - ULg > Département de chimie (sciences) > Chimie analytique, organique et biologique >]
18-Jun-2012
PLoS ONE
Public Library of Science
7
6
e39005
Yes (verified by ORBi)
International
1932-6203
San Franscisco
CA
[en] Forensic science ; Forensic Chemistry ; Odor analysis ; Cadaver decomposition ; Volatile Organic Compounds ; VOCs ; comprehensive two-dimensional gas chromatography (GCxGC) ; Time-of-flight mass spectrometry (TOFMS) ; mass spectral deconvolution
[en] Soon after death, the decay process of mammalian soft tissues begins and leads to the release of cadaveric volatile compounds in the surrounding environment. The study of postmortem decomposition products is an emerging field of study in forensic science. However, a better knowledge of the smell of death and its volatile constituents may have many applications in forensic sciences. Domestic pigs are the most widely used human body analogues in forensic experiments, mainly due to ethical restrictions. Indeed, decomposition trials on human corpses are restricted in many countries worldwide. This article reports on the use of comprehensive two-dimensional gas chromatography coupled with time-offlight mass spectrometry (GCxGC-TOFMS) for thanatochemistry applications. A total of 832 VOCs released by a decaying pig carcass in terrestrial ecosystem, i.e. a forest biotope, were identified by GCxGC-TOFMS. These postmortem compounds belong to many kinds of chemical class, mainly oxygen compounds (alcohols, acids, ketones, aldehydes, esters), sulfur and nitrogen compounds, aromatic compounds such as phenolic molecules and hydrocarbons. The use of GCxGC-TOFMS in study of postmortem volatile compounds instead of conventional GC-MS was successful.
Researchers ; Professionals ; Students ; Others
http://hdl.handle.net/2268/125811
10.1371/journal.pone.0039005
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0039005#
http://reflexions.ulg.ac.be/OdeursMort

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