International Journal of Thermophysics

, Volume 34, Issue 8–9, pp 1695–1702 | Cite as

Determination of Tequila Quality by Photoacoustic Analysis

  • Atzin Ruiz-Pérez
  • J. I. Pérez-Castañeda
  • R. Castañeda-Guzmán
  • S. J. Pérez-Ruiz
Article
First Online:
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Accepted:

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.

Keywords

Characterization Photoacoustic Tequila 
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Notes

Acknowledgments

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

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Atzin Ruiz-Pérez
    • 1
  • J. I. Pérez-Castañeda
    • 1
  • R. Castañeda-Guzmán
    • 1
  • S. J. Pérez-Ruiz
    • 1
  1. 1.Laboratorio de Fotofísica y Películas Delgadas, Centro de Ciencias Aplicadas y Desarrollo TecnológicoUniversidad Nacional Autónoma de México. Cd. UniversitariaMexicoMexico

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