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Determination of Tequila Quality by Photoacoustic Analysis

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Abstract

A pulsed laser photoacoustic (PLPA) technique is proposed to distinguish original from adulterated tequila. In fact, it brings a reliable cheaper and more sensible method in adulteration detection, in comparison with traditional techniques. The method proposed is comparative and non-destructive, and it is based on a correlation analysis of photoacoustic signals, obtained by exciting tequila samples with short laser pulses (7 ns), in the UV region (355 nm). Eleven samples of tequila were analyzed. From a reference sample, all other samples were classified.

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Acknowledgments

This work was supported by CONACyT No. 82919 (México) and PAPIIT No. IT-115011.

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Authors and Affiliations

  1. Laboratorio de Fotofísica y Películas Delgadas, Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México. Cd. Universitaria, A. P. 70-186, 04510 , Mexico, DF, Mexico

    Atzin Ruiz-Pérez, J. I. Pérez-Castañeda, R. Castañeda-Guzmán & S. J. Pérez-Ruiz

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  1. Atzin Ruiz-Pérez
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  2. J. I. Pérez-Castañeda
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  3. R. Castañeda-Guzmán
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  4. S. J. Pérez-Ruiz
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Correspondence to R. Castañeda-Guzmán.

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Ruiz-Pérez, A., Pérez-Castañeda, J.I., Castañeda-Guzmán, R. et al. Determination of Tequila Quality by Photoacoustic Analysis. Int J Thermophys 34, 1695–1702 (2013). https://doi.org/10.1007/s10765-013-1397-z

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  • DOI: https://doi.org/10.1007/s10765-013-1397-z

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