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30 September 2024 Optical interferometry as a solution to detect liquid adulteration
R. I. Alvarez-Tamayo, P. Prieto-Cortes, A. Barcelata-Pinzon
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Proceedings Volume 13135, Interferometry and Structured Light 2024; 131350I (2024) https://doi.org/10.1117/12.3027088
Event: Optical Engineering + Applications, 2024, San Diego, California, United States
Abstract
Recently, different substances designated for local anesthesia or as substances harmful to health have had a boom in their illegal use to perpetrate crimes associated with adulterated beverages. These substances are colorless and odorless liquids, almost imperceptible to the taste. A sensing system based on a double-aperture common-path interferometer for rapid detection of different types of adulteration (methanol and ethanol) added in different types of alcoholic beverages (brandy and rum) is proposed. The method for determining the adulteration degree is based on measurement of variations on the interference free spectral range from a one-shot interferogram.
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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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R. I. Alvarez-Tamayo, P. Prieto-Cortes, and A. Barcelata-Pinzon "Optical interferometry as a solution to detect liquid adulteration", Proc. SPIE 13135, Interferometry and Structured Light 2024, 131350I (30 September 2024); https://doi.org/10.1117/12.3027088
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KEYWORDS
Liquids
Interferograms
Refractive index
Optical interferometry
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