the same number contain inks of a slightly different composition.
The results obtained in the ‘‘intralaboratory test of utility’’,
showing high effectiveness in many cases, provided a basis for
stating that the proposed method has great potential and can be a
useful tool in questioned document examination. It is ready to be
used, as an alternative to TLC or HPLC, for the analysis of inks in real
forensic cases – both differentiation of inks and group identification
with the use of a database were possible. However, it can be
further improved by performing quantitative analysis with the aim
of allowing more correct ink formula identifications and providing
greater evidential value in the comparative examination of inks
made by the same producer.