Nondestructive classification and identification of ballpoint pen inks by Raman spectroscopy for forensic document examinations
- 作者: Lee L.1, Samad M.1, Ismail M.1
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隶属关系:
- Forensic Sciences Program, Faculty of Health Sciences
- 期: 卷 71, 编号 7 (2016)
- 页面: 723-729
- 栏目: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/181899
- DOI: https://doi.org/10.1134/S106193481607011X
- ID: 181899
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详细
As a non-destructive analytical method, Raman spectroscopy often provides insufficient information to identify or differentiate the ink used for the preparation of a questioned document. In this study, blue and black ballpoint pen inks deposited on paper substrate were examined in situ by conventional Raman spectroscopy. Inks were successfully classified based on the total number of prominent bands in Raman spectra. It was found that more than 90% of the samples of the same type and color could be differentiated visually using only Raman spectra, i.e. 94 and 95% for blue and black inks, respectively. As a result of this study, a flow chart has been constructed for blue and black ballpoint pen inks allowing their systematic identification. Raman spectroscopy proved to be a fast and precise technique for forensic ink analysis.
作者简介
Loong Lee
Forensic Sciences Program, Faculty of Health Sciences
编辑信件的主要联系方式.
Email: lc_lee@ukm.edu.my
马来西亚, Kuala Lumpur, 50300
Muhammad Samad
Forensic Sciences Program, Faculty of Health Sciences
Email: lc_lee@ukm.edu.my
马来西亚, Kuala Lumpur, 50300
Mohamad Ismail
Forensic Sciences Program, Faculty of Health Sciences
Email: lc_lee@ukm.edu.my
马来西亚, Kuala Lumpur, 50300