Dating The Ballpoint Pen Inks Using Gas Chromatography-Mass Spectrometry Technique | ||
| Egyptian Journal of Chemistry | ||
| Article 1, Volume 62, Issue 3, March 2019, Pages 385-400 PDF (1.9 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2018.4812.1427 | ||
| Authors | ||
| Mohamed Mohsen El-sabbah1; Abdelaziz Zaki Gomaa2; Dalia elhafny3; Ahmed Soliman Al-Hawary* 4 | ||
| 1Physical Chemistry, Faculty of Science, Al-Azhar University | ||
| 2Former Quality Control Director of Pachin Co. | ||
| 3Pesticides Residues and Environmental Pollution, Central Agricultural Pesticides Laboratory, Agricultural Research Center, Giza, Egypt | ||
| 4Forensic Medicine Authority | ||
| Abstract | ||
| The study of aging of valuable documents is asked by the Forensic Medicine in Egypt. Eight ballpoint pens; commonly used in Egypt were chosen for this study. The aging was studied kinetically by measuring the solvent concentration of 2-phenoxyethanol overtime by the GC-MS. The ink aging curves were plotted, using the solvent volatility ratio was an effective means of determining the chronological age of the ballpoint pen inks. Our technique was demonstrated by examining tow printed forms of the trust receipts. It was found that determining the ink date is valid and can be trusted. A simple equation is proposed that can be applied for the prediction of ink dating. | ||
| Keywords | ||
| Ballpoint pen ink; questioned document; a valuable document; ink dating; ink aging; 2-phenoxyethanol; GC-MS | ||
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