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Title: Determination of Cu in tequila by anodic stripping voltammetry
Author: Carreon-Alvarez, A.
Casillas, N.
Ibanez, J.G.
Hernandez, F.
Prado-Ramirez, R.
Barcena-Soto, M.
Gomez-Salazar, S.
Issue Date: 2008
Abstract: Concentrations of metals such as copper in alcoholic beverages must be strictly regulated due to negative effects ranging from beverage spoilage and hazing, to sensorial and health consequences. In this paper, a voltammetric alternative is presented for the analysis of copper in tequila, a Mexican spirituous alcoholic beverage. Anodic Stripping Voltammetry is applied and the standard addition method is used to quantify copper in this beverage at concentrations commonly present in tequila (<10 ppm) without sample pretreatment. Copper can be reduced and then oxidized quantitatively and reproducibly. A comparison of Anodic Stripping Voltammetry with Atomic Absorption Spectrometry is presented. Copyright © Taylor & Francis Group, LLC.
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