Questioned document examination becomes a great interest and one of the broad fields in forensic science. It involves the analysis of ink, handwriting and signature examination, paper’s physical structure analysis and the ageing of a document. Ink analysis in forensic document examination is a challenging process. Questioned documents examiners are dealing with unknown source of ink and minute sample size. Ink extraction needs to be done before the ink analysis. 17 gel pen ink samples were chosen in this study. Solubility test has been done to determine the degree of solubility of ink in a variety of organic solvents. Extraction solvent optimization is a process to evaluate the efficiency of organic solvents to extract ink samples. Ethanoic acid showed the ability to dissolve most of the ink samples and displayed maximum absorbance of UV-Vis spectra.
| Item Type: | Article |
|---|---|
| Creators: | Creators Email / ID Num. Zaharulli, Nur Atiqah atiqah0361@uitm.edu.my |
| Subjects: | Q Science > QD Chemistry > Physical and theoretical chemistry > Theory of solution T Technology > TP Chemical technology > Chemical engineering > Special processes and operations > Extraction |
| Divisions: | Universiti Teknologi MARA, Pulau Pinang |
| Journal or Publication Title: | ESTEEM Academic Journal |
| UiTM Journal Collections: | UiTM Journals > ESTEEM Academic Journal (EAJ) |
| ISSN: | 2289-4934 |
| Volume: | 16 |
| Number: | Dec |
| Page Range: | pp. 88-95 |
| Keywords: | gel pen ink; ink analysis; ink extraction; organic solvent; questioned document examination |
| Date: | December 2020 |
| URI: | https://ir.uitm.edu.my/id/eprint/40660 |
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