A paper-based colorimetric spot test for the identification of adulterated whiskeys
Thiago M G Cardoso1, Robert B Channon, Jaclyn A Adkins
1Instituto de Química, Universidade Federal de Goiás, Goiânia, GO 74690-900, Brazil. Wendell@ufg.br.
Abstract:
A colorimetric point-of-care paper-based analytical device (PAD) is developed for detecting adulterated beverages using whiskey falsified with caramel color as a model. Combining principal component analysis and calibration curves facilitated identification of adulteration in samples seized by the Brazilian Federal Police, at only ∼$0.02 per sample.


