Determination of the alcoholic content in whiskeys using micellar electrokinetic chromatography on microchips.

Autor: Rezende KCA; Instituto de Química, Universidade Federal de Goiás, Campus Samambaia, 74690-900 Goiânia, GO, Brazil., Martins NM; Instituto de Química, Universidade Federal de Goiás, Campus Samambaia, 74690-900 Goiânia, GO, Brazil., Talhavini M; Instituto Nacional de Criminalística, Departamento de Polícia Federal, 70610-200 Brasília, DF, Brazil., Coltro WKT; Instituto de Química, Universidade Federal de Goiás, Campus Samambaia, 74690-900 Goiânia, GO, Brazil; Instituto Nacional de Ciência e Tecnologia em Bioanalítica (INCTBio), 13083-861 Campinas, SP, Brazil. Electronic address: wendell@ufg.br.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2020 Nov 01; Vol. 329, pp. 127175. Date of Electronic Publication: 2020 May 30.
DOI: 10.1016/j.foodchem.2020.127175
Abstrakt: This report describes the development of a methodology based on micellar electrokinetic chromatography for the separation of alcohols on chip-based systems aiming the determination of alcoholic content in whiskey samples. The separation conditions were optimized the best results were achieved using 50 mmolL -1 phosphate buffer containing 30 mmolL -1 sodium dodecyl sulfate. The alcoholic content was determined in 16 seized whiskey samples from 4 different brands as well as in the original samples. The methodology presented herein allowed the correct classification of 75% of the seized samples as adulterated and the data obtained did not statistically differ from those recorded by a reference technique. The proposed analytical approach emerges as a promising tool to provide a rapid screening of the beverages authenticity and it may be useful to be widely explored for the quality control.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: