Identification of Vegetable Oil or Biodiesel Added to Diesel Using Fluorescence Spectroscopy and Principal Component Analysis |
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Authors: | Giancarlo Tomazzoni Marilena Meira Cristina M Quintella Giuliano Fernandes Zagonel Bill Jorge Costa Paulo Roberto de Oliveira Iuri Muniz Pepe Pedro Ramos da Costa Neto |
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Affiliation: | 1. Química e Biologia, Universidade Tecnológica Federal do Paraná, Curitiba, Brazil 2. Química Geral e Inorganica, Universidade Federal da Bahia, Salvador, Brazil 3. Centro de Energias, Instituto de Tecnologia do Paraná-Tecpar, Curitiba, Brazil 4. Química Geral e Inorganica, Universidade Tecnológica Federal do Paraná, Curitiba, Brazil 5. Física Geral, Universidade Federal da Bahia, Salvador, Brazil
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Abstract: | In order to identify possible adulteration of onroad diesel with vegetable oil, fluorescence spectroscopy was used as the analytical technique to differentiate between vegetable oil and biodiesel in diesel blends. Diesel/oil and diesel/biodiesel blends made with different proportions of soy, canola or waste cooking oil were analyzed. The reduced cost of analysis using fluorescence spectroscopy together with the reliability of the results suggest that this technique could be of great use in differentiating between diesel, biodiesel and vegetable oil and could therefore be used for rapid identification or confirmation of adulterated diesel. Furthermore, a compact fluorescence spectrophotometer with an LED excitation source could be used in gas stations or fuel distributors for diesel quality control because of its practicality, low cost and reliability. |
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Keywords: | Adulteration Fuel Biodiesel Diesel Vegetable oil Fluorescence spectroscopy Principal component analysis (PCA) |
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