Saidin, Mohd Hilmi
(2006)
Identification of different inks using ft -ir.
Other.
Universiti Sains Malaysia.
(Submitted)
Abstract
Infrared spectroscopy is one of the powerful techniques used in the
characterization of materials. The vast majority of the molecules in universe
possess vibration energy within the mid-infrared region, which extends from
4000-400 cm·1
, so it is defined as fingerprint region for most of the materials
particularly those polymeric materials that incorporate chemical functional groups
as part of their structure.
In this project, three types of inks were used for analysis of the
components: ballpoint inks, marker pen inks and fountain inks. Each type has
different brands and color. The focus of this study was to assign the major
absorption bands and try to differentiate the types of inks. This aspect of studies
is important from the forensic point of view.
On the basic of spectral bands, the fountain pen, ballpoint pen and marker
pen inks, were easily identified and discriminated; mainly the dyes components
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