Preliminary Studies into the Characterization of Chemical Markers of Decomposition for Geoforensics
In this paper, we report the results of our preliminary studies into chemical characterization of the fluids produced during decomposition in the absence of a soil matrix. Pig (Sus domestica) carcasses were used to model the human decomposition process in two separate locations, Western Australia (Perth) and Canada (Oshawa). Analysis involved simple dilution and filtration of the decomposition fluids followed by gas chromatography–mass spectrometry. Several previously unreported compounds were detected in the decomposition fluid samples during the trials, including benzeneacetic acid, benzenepropionic acid, 2-piperidone, and isocaproic acid. Possible biosynthetic pathways for some of the compounds produced are proposed. Further research trials are required, particularly in the presence of soil matrices.
Document Type: Research Article
Affiliations: 1: Department of Chemistry, Curtin University of Technology, Box U1987, Perth, WA 6845, Australia. 2: Faculty of Science, University of Ontario Institute of Technology, Oshawa, ON, Canada L1H 7K4.
Publication date: March 1, 2010