Determination of Tequila Quality by Photoacoustic Analysis
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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.
KeywordsCharacterization Photoacoustic Tequila
This work was supported by CONACyT No. 82919 (México) and PAPIIT No. IT-115011.
- 1.NOM-006 SCFI, Mexican Ministry of Commerce and Industry, Regulation Alcoholic Drinks-Tequila Specifications México (Diario Oficial de la Federación, 2005), pp. 26–47Google Scholar
- 11.A. Pérez-Pacheco, R. Castañeda-Guzmán, C. Oliva Montes de Oca, A. Esparza-García, S. Pérez Ruiz, Appl. Phys. A: Mater. Sci. Process. 102, 699 (2011)Google Scholar