School of Criminal Justice, Faculty of Law, Criminal Justice, and Public Administration, University of Lausanne, Switzerland.
Faculty Unit of Toxicology, University Center of Legal Medicine, Vulliette 04, 1000 Lausanne, Switzerland.
Forensic Sci Int. 2022 Sep;338:111380. doi: 10.1016/j.forsciint.2022.111380. Epub 2022 Jul 8.
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.
这些年来，指纹的化学成分引起了研究人员的兴趣，以满足多个目标，如确定个体的年龄、性别或生活方式，或一些指纹检测过程的影响等。这些研究强调了需要研究指纹成分随时间的一致性。本研究探讨了十三个供体在一年中的分泌残留物成分的演变，重点是个体内的可变性。基质辅助激光解吸/电离质谱成像（MALDI-MSI）和化学计量学的双重使用提供了有价值的数据，这些数据涉及成分随时间的演变以及数百种化合物的存在一致性。
