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Reducing variation in decomposition odour profiling using comprehensive two‐dimensional gas chromatography
Author(s) -
Perrault Katelynn A.,
Stefanuto PierreHugues,
Stuart Barbara H.,
Rai Tapan,
Focant JeanFrançois,
Forbes Shari L.
Publication year - 2015
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201570011
Subject(s) - profiling (computer programming) , gas chromatography , volatile organic compound , chemistry , decomposition , chromatography , computer science , organic chemistry , operating system
(J. Sep. Sci. 2015, 38 (1), 73–80) DOI: 10.1002/jssc.201400935 This cover picture illustrates the main areas in which challenges are met in decomposition odour profiling; these lead to decreased consensus in the volatile organic compound profile produced during the decomposition of human or animal remains. A project design is required that uses appropriate replicates and controls, followed by valid collection and analysis methods of odorous compounds. Comprehensive two‐dimensional gas chromatography (GC × GC) data is useful for this purpose, providingmore accurate analyses than traditional one‐dimensional gas chromatography, yet complicates the data processing steps required. Data processing and statistical analyses of comprehensive two‐dimensional data can be challenging and a data handling approach was developed to enhance confidence in the results. Principles from this approach may be applied with success to other areas of volatile organic compound profiling to permit standardisation of data processing methods.