CLASSIFICATION AND IDENTIFICATION OF COLOR PHOTOCOPIERS BY FT-IR AND GC MS/

Colored toner samples and counterfeit money processed from color photo copiers were collected from the same six manufacturers. Through infrar ed spectroscopy, a spectral match between the standard toner prowder a nd the toner extracted from the respective copies counterfeit banknote and documents was achieved. The results allowed the identification of the manufacturers and models, except for one manufacturer for which o nly partial identification was obtained. The toners were characterized and classified into different groups. Characterization or elimination of the toner extracted from counterfeit money processed by suspected photocopiers, is foreseen through building a transpose library of infr ared data. Gas chromatography/mass spectrometry results showed that it can be used as a complementary method.