Raman Microspectroscopy of Genuine and Fake Euro Banknotes
2013; Taylor & Francis; Volume: 46; Issue: 8 Linguagem: Inglês
10.1080/00387010.2013.769007
ISSN1532-2289
AutoresAlexandra Guedes, Manuel Algarra, Ángel Carmelo Prieto Colorado, Bruno Valentim, V. Hortelano, Selma Neto, Rafael Algarra, Fernando Noronha,
Tópico(s)Conservation Techniques and Studies
ResumoABSTRACT To evaluate the effectiveness of Raman microspectroscopy in euro banknotes' recognition, several genuine and fake 10 and 20 euro banknotes were analyzed. Raman microspectroscopy revealed itself to be very useful in the detection of differences in the inks used to provide the color on the banknotes. However, the study revealed that the Raman analysis results are not decisive to guarantee the authenticity of a specific banknote since similar Raman spectra were obtained for genuine and fake banknotes. Even the Raman microspectroscopy analysis obtained for the same color on different areas of fake banknotes revealed similar spectra, and this can help law enforcement agencies to identify counterfeit tracking routes. KEYWORDS: banknotescounterfeitsinksRaman microspectroscopy ACKNOWLEDGMENTS This work is funded by the FEDER through the Program COMPETE and by FCT funds under the project "PEst-OE/CTE/UI0039/201-UI 39" and Ciência 2007 Program. The authors are grateful to the Judicial Police (Policia Judicial, Marbella, Spain) for the purchase of the fake banknotes for the study carried out. We are also grateful to the two anonymous reviewers for improving this paper. Notes n.i.: not identified.
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