Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Tytuł pozycji:

Writing sequence identification of seals and signatures in documents using ambient mass spectrometry imaging with chemometric methods.

Tytuł:
Writing sequence identification of seals and signatures in documents using ambient mass spectrometry imaging with chemometric methods.
Autorzy:
Luo Z; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, PR China.
Wang W; Institute of Forensic Science, Ministry of Public Security, Beijing, 100038, PR China.
Pang X; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, PR China.
Zhang J; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, PR China.
Sun C; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, PR China.
Zhou X; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, PR China.
He J; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, PR China.
Zhang R; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, PR China.
Li X; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, PR China.
Lian Z; Institute of Forensic Science, Ministry of Public Security, Beijing, 100038, PR China.
Abliz Z; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, PR China; Center for Imaging & Systems Biology, Minzu University of China, Beijing, 100081, PR China. Electronic address: .
Źródło:
Talanta [Talanta] 2021 Dec 01; Vol. 235, pp. 122804. Date of Electronic Publication: 2021 Aug 18.
Typ publikacji:
Journal Article
Język:
English
Imprint Name(s):
Publication: Amsterdam : Elsevier
Original Publication: Oxford : Pergamon Press
MeSH Terms:
Spectrometry, Mass, Electrospray Ionization*
Writing*
Discriminant Analysis ; Least-Squares Analysis ; Mass Spectrometry ; Principal Component Analysis
Contributed Indexing:
Keywords: Air flow-assisted ionization; Chemometric methods; Equivocal documents; Mass spectrometry imaging; Writing sequence identification
Entry Date(s):
Date Created: 20210914 Date Completed: 20210915 Latest Revision: 20210915
Update Code:
20240105
DOI:
10.1016/j.talanta.2021.122804
PMID:
34517662
Czasopismo naukowe
Identifying the writing sequence of seals and signatures in documents is often performed and difficult to resolve in forensic determination. Morphological and physical-chemical analysis methods are often limited by the destructive nature of samples, a high signal response strength and specific materials. Mass spectrometry imaging (MSI) has been used as an alternative method because it can generate molecular images from many surfaces and produce rich chemical information. Herein, we developed a sequence identification method by coupling an air flow-assisted desorption electrospray ionization (AFADESI)-MSI system with a chemometric analysis, which can holistically and directly analyse document samples under ambient, moderate and selectable conditions and maintain the original appearance of the paper documents after sampling. By integrating principal component analysis (PCA) and the partial least squares discriminant analysis (PLS-DA), equivocal point analysis can be objectively performed, where knowing the components of the seal or signature is not necessary to identify the sequence. In total, 28 prepared samples with known sequences and two original blind test samples were analysed. One prepared sample was analysed in negative ionization mode, and other samples were inferred in positive ionization mode. All writing sequences were in accordance with the actual case. The writing sequence of the blind testing of the original samples was correctly identified. This study provided a convenient, objective and quasi-nondestructive method to investigate the sequence differences among equivocal document samples and is promising for providing an alternative method for the sequence identification of seals and signatures in questionable documents.
(Copyright © 2021 Elsevier B.V. All rights reserved.)

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies