Use of copper and gold electrodes as sensitive elements for fabrication of an electronic tongue: Discrimination of wines and whiskies

Autor(es)

Novakowski, Wander ^[1] ; Bertotti, Mauro ^[2] ; Paixao, Thiago R. L. C. ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP - Brazil

^[2] Univ Sao Paulo, Inst Quim, BR-05508900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Microchemical Journal; v. 99, n. 1, p. 145-151, SEP 2011.
• Citações Web of Science: 35

Resumo

A low-cost method is proposed to classify wine and whisky samples using a disposable voltammetric electronic tongue that was fabricated using gold and copper substrates and a pattern recognition technique (Principal Component Analysis). The proposed device was successfully used to discriminate between expensive and cheap whisky samples and to detect adulteration processes using only a copper electrode. For wines, the electronic tongue was composed of copper and gold working electrodes and was able to classify three different brands of wine and to make distinctions regarding the wine type, i.e., dry red, soft red, dry white and soft white brands. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 09/07859-1 - Desenvolvimento de línguas eletrônicas voltamétricas visando à caracterização e identificação de processos de adulteração e falsificação em biocombustíveis
• Beneficiário: Thiago Regis Longo Cesar da Paixão
• Modalidade de apoio: Auxílio à Pesquisa - Regular