Inproceedings: an article in a conference proceedings.
Dating of Ink Entries by MALDI/LDI-MS and GC-MS analysis: Reality or Utopia?
Title of the conference
Proceedings of the 3rd European Academy of Forensic Science meeting
European Association of Forensic Science Meeting
Forensic science international
Old size value: 73-74
In forensic examinations of documents the legitimacy of the age of an ink entry is often an essential question. Ballpoint ink contains equivalent amounts of dyes, solvents and resins. After the ink is deposited on paper, its composition begins to change qualitatively and quantitatively. The aim of this investigation is to develop mass spectrometric methods of analysis for dyes and solvents to evaluate the aging processes of blue ballpoint ink entries with only minimal or without chemical treatment. Matrix Assisted Laser Desorption Ionisation (MALDI) and Gas Chromatography (GC) mass spectrometry methodologies were developed in order to characterise aging processes.
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