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Electrochemical Sample Preparation for the Voltammetric Determination of Heavy-Metal Ions in Wine

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Abstract

An original, simple, and rapid method consuming little labor and eliminating the contamination of a sample and the loss of analytes is proposed for the electrochemical preparation of wine samples. The time of electrochemical sample preparation (ECSP) is no longer than 10 min. A four-electrode single-compartment electrolyzer allows all stages of voltammetric analysis (electrochemical sample preparation, electrochemical preconcentration and determination) to be carried out continuously. The processes occurring at electrodes at different stages of analysis are described. The concentrations of heavy metals determined in wines by stripping voltammetry (SVA) and atomic absorption spectroscopy (AAS) are compared.

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Translated from Zhurnal Analiticheskoi Khimii, Vol. 60, No. 10, 2005, pp. 1015–1022.

Original Russian Text Copyright © 2005 by Stozhko, Kolyadina.

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Stozhko, N.Y., Kolyadina, L.I. Electrochemical Sample Preparation for the Voltammetric Determination of Heavy-Metal Ions in Wine. J Anal Chem 60, 901–907 (2005). https://doi.org/10.1007/s10809-005-0207-6

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  • DOI: https://doi.org/10.1007/s10809-005-0207-6

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