Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 562393
Title Detection and characterization of ignitable liquid residues in forensic fire debris samples by comprehensive two-dimensional gas chromatography
Author(s) Sampat, Andjoe A.S.; Daelen, Brenda Van; Lopatka, Martin; Mol, Hans; Derweg, Guido Van; Truyols, Gabriel Vivó; Sjerps, Marjan; Schoenmakers, Peter J.; Asten, Arian C. van
Source Separations 5 (2018)3.
DOI https://doi.org/10.3390/separations5030043
Department(s) BU Contaminants & Toxins
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) Arson - Comprehensive two-dimensional gas chromatography - Fire debris analysis - Forensic fire investigation - GC×GC - GC×GC-TOFMS - Ignitable liquids - Medium petroleum distillate - Simulated fire debris samples
Abstract

This study covers an extensive experimental design that was developed for creating simulated fire debris samples under controlled conditions for the detection and identification of ignitable liquids (IL) residues. This design included 19 different substrates, 45 substrate combinations with and without ignitable liquids, and 45 different ILs from three classes (i.e., white spirit, gasoline, and lamp oil). Chemical analysis was performed with comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC×GC-TOFMS) for improved separation and compound identification. The enhanced peak capacity offered by GC×GC-TOFMS allowed the use of a target compound list in combination with a simple binary decision model to arrive at quite acceptable results with respect to IL detection (89% true positive and 7% false positive rate) and classification (100% correct white spirit, 79% correct gasoline, and 77% correct lamp oil assignment). Although these results were obtained in a limited set of laboratory controlled fire experiments including only three IL classes, this study confirms the conclusions of other studies that GC×GC-TOFMS can be a powerful tool in the challenging task of forensic fire debris analysis.

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