Multivariate Classification of Original and Fake Perfumes by Ion Analysis and Ethanol Content |
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| Authors: | Clêrton L. Gomes Ph.D. Ari Clecius A. de Lima M.S. Adonay R. Loiola Ph.D. Abel B. R. da Silva M.S. Manuela C. L. Cândido M.S. Ronaldo F. Nascimento Ph.D. |
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| Affiliation: | 1. Department of Analytical Chemistry and Physico‐Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil;2. Federal Institute of Education Science and Technology of Ceara, Acarau, CE, Brazil;3. Department of Hydraulic and Environmental Engineering, Federal University of Ceará, Fortaleza, CE, Brazil;4. Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil;5. Laboratory of Econometrics and Optimization/CAEN, 2 Humanities Center, Federal University of Ceara, Fortaleza, CE, Brazil;6. Forensic Police of the Ceara State, Fortaleza, CE, Brazil |
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| Abstract: | The increased marketing of fake perfumes has encouraged us to investigate how to identify such products by their chemical characteristics and multivariate analysis. The aim of this study was to present an alternative approach to distinguish original from fake perfumes by means of the investigation of sodium, potassium, chloride ions, and ethanol contents by chemometric tools. For this, 50 perfumes were used (25 original and 25 counterfeit) for the analysis of ions (ion chromatography) and ethanol (gas chromatography). The results demonstrated that the fake perfume had low levels of ethanol and high levels of chloride compared to the original product. The data were treated by chemometric tools such as principal component analysis and linear discriminant analysis. This study proved that the analysis of ethanol is an effective method of distinguishing original from the fake products, and it may potentially be used to assist legal authorities in such cases. |
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| Keywords: | forensic science perfume original fake principal components analysis linear discriminant analysis |
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