References of "Focant, Jean-François"
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See detailGC×GC-TOFMS for forensic blood VOC profiling
Dubois, Lena ULg; Perrault, Katelynn ULg; Stefanuto, Pierre-Hugues ULg et al

Poster (2016, May 30)

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See detailA New Approach for the Characterization of Organic Residues from Stone Tools Using GC×GC-TOFMS
Perrault, Katelynn ULg; Stefanuto, Pierre-Hugues ULg; Dubois, Lena ULg et al

in Separations (2016), 3(2), 16

Headspace solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) have traditionally been used, in combination with other analyses, for the chemical characterization of ... [more ▼]

Headspace solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) have traditionally been used, in combination with other analyses, for the chemical characterization of organic residues recovered from archaeological specimens. Recently in many life science fields, comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GC×GC-TOFMS) has provided numerous benefits over GC-MS. This study represents the first use of HS-SPME-GC×GC-TOFMS to characterize specimens from an experimental modern reference collection. Solvent extractions and direct analyses were performed on materials such as ivory, bone, antlers, animal tissue, human tissue, sediment, and resin. Thicker film column sets were preferred due to reduced column overloading. The samples analyzed by HS-SPME directly on a specimen appeared to give unique signatures and generally produced a higher response than for the solvent-extracted residues. A non-destructive screening approach of specimens may, therefore, be possible. Resin and beeswax mixtures prepared by heating for different lengths of time appeared to provide distinctly different volatile signatures, suggesting that GC×GC-TOFMS may be capable of differentiating alterations to resin in future studies. Further development of GC×GC-TOFMS methods for archaeological applications will provide a valuable tool to uncover significant information on prehistoric technological changes and cultural behavior. [less ▲]

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See detailGCxGC-TOFMS for the Investigation of Archeological Mysteries
Perrault, Katelynn ULg; Dubois, Lena ULg; Stefanuto, Pierre-Hugues ULg et al

Scientific conference (2016, March)

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See detailIn vitro monitoring of human tissue degradation by TD-GC×GC-TOFMS
Stefanuto, Pierre-Hugues ULg; Dubois, Lena ULg; DELPORTE, Géraldine ULg et al

Conference (2016, January 27)

Human rescue dog unit are amongst the most efficient tools to locate cadaver or individuals trapped after a natural disaster. However, the dog training process is long and expensive. Dog trainers are ... [more ▼]

Human rescue dog unit are amongst the most efficient tools to locate cadaver or individuals trapped after a natural disaster. However, the dog training process is long and expensive. Dog trainers are still looking for a better understanding of the dog olfaction matching mechanism to improve their training methods (1). How does the decomposition process differ between organs? Are there specific body parts better suited for dog training? What are the major volatile compounds responsible of the dogs’ match response? In the line of these questions, this project was monitoring the headspace of various human organs during the decomposition process. Five different organs, from five different bodies, were used: heart, lung, liver, kidney, and blood. Each organs were sampled in triplicates and let to decompose in glass jar. Regularly, the headspace of the jar was sampled by dynamic pumping to sorbent tubes that were further be desorbed on a comprehensive two-dimensional gas chromatography system (GC×GC). GC×GC is a powerful analytical tool that allows the resolution of “the smell of death”, i.e. the decomposition odor (2-3). The development of an in vitro approach for decomposition monitoring provided several analytical improvements in the decomposition field. Indeed, the study of dead bodies is always limited in the number of replicates (4). The sampling process developed for this project allows intra and inter corpse comparison with at least triplicates sampling. These comparisons were conducted using advanced chemometric methods (Fisher ratio, PCA, hierarchical analysis…) that will contribute to better understand key parameters of rescue the dog training. References 1. Hoffman et al. FSI (2009) 186, 6-13. 2. Stefanuto et al. CPC (2014) 79, 786-789. 3. Perrault et al. J. Sep. Sci. (2015) 38, 73-80. 4. Stefanuto et al. ABC (2015) 407, 4767-4778 [less ▲]

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See detailCryogenic zone compression GC-HRTOFMS for the measurement of PCB-153 and DDE in 20 mL serum samples
L'homme, Benjamin; Focant, Jean-François ULg

in Analytical Methods (2016), 8

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See detailChasing the Dioxin Detection Dragon
Focant, Jean-François ULg

in The Analytical Scientist (2016), 0316-701

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See detailgrteg
Focant, Jean-François ULg

Conference (2016)

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