期刊
FORENSIC SCIENCE INTERNATIONAL
卷 338, 期 -, 页码 -出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.forsciint.2022.111380
关键词
Forensic science; Secretion residue; Mass spectrometry; Molecular signature
资金
- Swiss National Science Foundation [205121_182180]
- Swiss National Science Foundation (SNF) [205121_182180] Funding Source: Swiss National Science Foundation (SNF)
This research investigates the evolution of the secretion residue composition of thirteen donors over one year, focusing on the intravariability, using Matrix-Assisted Laser Desorption/Ionisation Mass Spectrometry Imaging (MALDI-MSI) and chemometrics. Valuable data regarding the evolution of composition over time as well as the consistency of presence of hundreds of compounds were obtained.
These past years, the chemical composition of fingermarks have attracted interest of researchers to meet multiple objectives like the determination of an individual's age, gender or lifestyle or the impact of some fingermark detection processes, to cite a few. These studies have highlighted the need to investigate the consistency of the fingermark composition over time. This research explores the evolution of the secretion residue composition of thirteen donors over one year, focusing on the intravariability. The dual use of Matrix-Assisted Laser Desorption/Ionisation Mass Spectrometry Imaging (MALDI-MSI) and chemometrics provided valuable data regarding the evolution of composition over time as well as the consistency of presence of hundreds of compounds.(c) 2022 The Author(s). Published by Elsevier B.V. CC_BY_4.0
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