Seasonal comparison of carrion volatiles in decomposition soil using comprehensive two-dimensional gas chromatography-time of flight mass spectrometry

Perrault, KA; Rai, T; Stuart, BH; Forbes, SL

Seasonal comparison of carrion volatiles in decomposition soil using comprehensive two-dimensional gas chromatography-time of flight mass spectrometry

Perrault, KA

Rai, T

Stuart, BH

Forbes, SL

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Publication Type:: Journal Article
Citation:: Analytical Methods, 2015, 7 (2), pp. 690 - 698
Issue Date:: 2015-01-21

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Field	Value	Language
dc.contributor.author	Perrault, KA https://orcid.org/0000-0003-0210-2687	en_US
dc.contributor.author	Rai, T https://orcid.org/0000-0003-1610-8983	en_US
dc.contributor.author	Stuart, BH https://orcid.org/0000-0001-9540-4435	en_US
dc.contributor.author	Forbes, SL https://orcid.org/0000-0001-7416-0080	en_US
dc.date.issued	2015-01-21	en_US
dc.identifier.citation	Analytical Methods, 2015, 7 (2), pp. 690 - 698	en_US
dc.identifier.issn	1759-9660	en_US
dc.identifier.uri	http://hdl.handle.net/10453/30511
dc.description.abstract	© The Royal Society of Chemistry. Increased characterisation of decomposition odour has improved existing knowledge regarding the decomposition volatile organic compound (VOC) profile of carrion. Validation of this dynamic decomposition VOC profile is required in order to characterise the variables that affect their production. This study was performed to determine whether the decomposition VOC profile produced under field conditions differed between summer and winter in an Australian environment. Outdoor studies were conducted using pig carcasses as human analogues in order to assess seasonal variation in the decomposition process. Common decomposition VOCs were identified using comprehensive two-dimensional gas chromatography-time of flight mass spectrometry (GC×GC-TOFMS). Fewer compounds and reduced abundance of VOCs was observed during winter. Relationships between the levels of detected decomposition VOCs and weather variables were established to be stronger in winter. Weak relationships during summer suggested the potential that an underlying variable (e.g. microbial activity, insect activity) had a stronger relationship to the abundance of decomposition VOCs. The seasonal robustness of the decomposition VOC profile is important to fields relying on the presence of a decomposition odour, i.e. search and recovery of victims in mass disasters, homicides, and missing persons cases. This journal is	en_US
dc.relation	http://purl.org/au-research/grants/arc/FT110100753
dc.relation.ispartof	Analytical Methods	en_US
dc.relation.isbasedon	10.1039/c4ay02321h	en_US
dc.title	Seasonal comparison of carrion volatiles in decomposition soil using comprehensive two-dimensional gas chromatography-time of flight mass spectrometry	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	7	en_US
utslib.for	0301 Analytical Chemistry	en_US
utslib.for	0399 Other Chemical Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/DVC (Research)
pubs.organisational-group	/University of Technology Sydney/DVC (Research)/Graduate Research School
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CFS - Centre for Forensic Science
utslib.copyright.status	closed_access
pubs.issue	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	7	en_US

Abstract:

© The Royal Society of Chemistry. Increased characterisation of decomposition odour has improved existing knowledge regarding the decomposition volatile organic compound (VOC) profile of carrion. Validation of this dynamic decomposition VOC profile is required in order to characterise the variables that affect their production. This study was performed to determine whether the decomposition VOC profile produced under field conditions differed between summer and winter in an Australian environment. Outdoor studies were conducted using pig carcasses as human analogues in order to assess seasonal variation in the decomposition process. Common decomposition VOCs were identified using comprehensive two-dimensional gas chromatography-time of flight mass spectrometry (GC×GC-TOFMS). Fewer compounds and reduced abundance of VOCs was observed during winter. Relationships between the levels of detected decomposition VOCs and weather variables were established to be stronger in winter. Weak relationships during summer suggested the potential that an underlying variable (e.g. microbial activity, insect activity) had a stronger relationship to the abundance of decomposition VOCs. The seasonal robustness of the decomposition VOC profile is important to fields relying on the presence of a decomposition odour, i.e. search and recovery of victims in mass disasters, homicides, and missing persons cases. This journal is

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http://hdl.handle.net/10453/30511