Detection of counterfeit Viagra® by Raman microspectroscopy imaging and multivariate analysis.

Last updated on 22-8-2019 by Anonymous (not verified)

Peer reviewed scientific article



During the past years, pharmaceutical counterfeiting was mainly a problem of developing countries with weak enforcement and inspection programs. However, Europe and North America are more and more confronted with the counterfeiting problem. During this study, 26 counterfeits and imitations of Viagra® tablets and 8 genuine tablets of Viagra® were analysed by Raman microspectroscopy imaging. After unfolding the data, three maps are combined per sample and a first PCA is realised on these data. Then, the first principal components of each sample are assembled. The exploratory and classificatio…

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