Discrimination between authentic and counterfeit banknotes using Raman spectroscopy and PLS-DA with uncertainty estimation

► Raman spectroscopy and chemometric were explored as analytical method to discriminate authentic and counterfeit banknotes. ► The analysis was based on the characterization of inks used to confect the banknotes. ► The classification method PLS-DA was employed to discriminate authentic and counterfeit banknotes. ► The reliability of the results was calculated using the re-sampling bootstrap technique.