| Title: | Human scent signature on cartridge case survives gun being fired: A preliminary study on a potential of scent residues as an identification tool |
| Author(s): | Ladislavova N; Pojmanova P; Vrbka P; Snuparkova J; Urban S; |
| Address: | "Faculty of Chemical Engineering, Department of Analytical Chemistry, UCT Prague, Prague, Czech Republic. Faculty of Chemical Engineering, Department of Physical Chemistry, UCT Prague, Prague, Czech Republic. Faculty of Chemical Engineering, Department of Mathematics, UCT Prague, Prague, Czech Republic" |
| DOI: | 10.1371/journal.pone.0283259 |
| ISSN/ISBN: | 1932-6203 (Electronic) 1932-6203 (Linking) |
| Abstract: | "This paper focuses on a chemical analysis of human scent samples that were obtained from cartridge cases after being fired and their comparison with scent samples collected under laboratory conditions. Scent samples were analyzed by comprehensive two-dimensional gas chromatography coupled with the time-of-flight mass spectrometer. The results obtained from the chemical analyzes confirmed the desired stability of the human scent evidence and outlined the possible application for forensic purposes. The qualitative results of the study converge with the findings of previous studies on the composition of human scent and the chemical composition of human fingerprints. Furthermore, statistical analyzes were performed employing similarity algorithms such as Pearson's and Spearman's correlations, or Kendall's tau. The resulting comparison of the scent samples secured on fired cartridge cases compared with those samples collected under laboratory conditions yielded ten out of ten correct identifications of the scent inflictor" |
| Keywords: | "Humans *Odorants/analysis *Forensic Medicine/methods Chromatography, Gas Pheromones;" |
| Notes: | "MedlineLadislavova, Nikola Pojmanova, Petra Vrbka, Pavel Snuparkova, Jana Urban, Stepan eng Research Support, Non-U.S. Gov't 2023/03/23 PLoS One. 2023 Mar 22; 18(3):e0283259. doi: 10.1371/journal.pone.0283259. eCollection 2023" |
