Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
96808 | Forensic Science International | 2011 | 5 Pages |
Abstract
An important requisite for the forensic analysis of inks on documents is that damage to the document is avoided or minimised. This paper describes a technique for dye identification in ballpoint pen inks using LDI-TOFMS on single ink bearing paper fibres and its application to a case. A single ink bearing paper fibre can be prised from the surface of the document under a stereo microscope and presented to the instrument for analysis without further treatment. This sampling process causes imperceptible damage to the surface of the document. Clear mass spectrometric identification of the ink dyes is obtained. A case example is provided to illustrate the practical application of the technique.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Broderick Matthews, G. Stewart Walker, Hilton Kobus, Paul Pigou, Carolyne Bird, Glyn Smith,