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Forensic analysis of gel pen inks using hyperspectral imaging coupled with chemometric procedures
Other Title(s)
التحليل الجنائي لأحبار الأقلام الهلامية باستخدام التصوير فوق الطيفي و المقترنة بإجراءات قياس كيميائية
Joint Authors
Desa, Wan Nur Syuhaila Mat
Ismail, Dzulkiflee
Asri, Muhammad N. M.
Nur, Nur A. M.
Source
Arab Journal of Forensic Sciences and Forensic Medicine
Issue
Vol. 1, Issue 9 (30 Jun. 2019), pp.1174-1184, 11 p.
Publisher
Naif Arab University for Security Sciences Arab Society for Forensic Sciences and Forensic Medicine
Publication Date
2019-06-30
Country of Publication
Saudi Arabia
No. of Pages
11
Main Subjects
Abstract EN
Forensic examination of inks on questioned documents has become an important practice and the law enforcement agencies rely heavily on these techniques during criminal investigations.
Although nowadays there are a variety of methodologies focused on the analysis of inks, the combination of non-destructive nature of Hyperspectral Imaging (HSI) coupled with the multivariate chemometric technique has received little attention.
In this study, forty-five (n = 45) gel pen inks of three different colours i.e.
blue, red and black of five different brands were analysed using HSI with the idea of classifying them according to the brand.
In terms of discriminating similar coloured components between samples, this was achievable only on the basis of the % reflectance spectra.
However, arguably, there was sufficient evidence to suggest that it may be possible to discriminate the samples using chemometric of Principal Component Analysis (PCA).
A 2-D score plot from PCA analysis was enough to characterise the samples into five clusters.
The synergy of complementary information provided by PCA narrows matching possibilities (in terms of classification) for forensic investigations involving ink analysis.
American Psychological Association (APA)
Asri, Muhammad N. M.& Nur, Nur A. M.& Desa, Wan Nur Syuhaila Mat& Ismail, Dzulkiflee. 2019. Forensic analysis of gel pen inks using hyperspectral imaging coupled with chemometric procedures. Arab Journal of Forensic Sciences and Forensic Medicine،Vol. 1, no. 9, pp.1174-1184.
https://search.emarefa.net/detail/BIM-1086274
Modern Language Association (MLA)
Asri, Muhammad N. M.…[et al.]. Forensic analysis of gel pen inks using hyperspectral imaging coupled with chemometric procedures. Arab Journal of Forensic Sciences and Forensic Medicine Vol. 1, no. 9 (2019), pp.1174-1184.
https://search.emarefa.net/detail/BIM-1086274
American Medical Association (AMA)
Asri, Muhammad N. M.& Nur, Nur A. M.& Desa, Wan Nur Syuhaila Mat& Ismail, Dzulkiflee. Forensic analysis of gel pen inks using hyperspectral imaging coupled with chemometric procedures. Arab Journal of Forensic Sciences and Forensic Medicine. 2019. Vol. 1, no. 9, pp.1174-1184.
https://search.emarefa.net/detail/BIM-1086274
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-1086274