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Title: An insight into the adsorption and electrochemical processes occurring during the analysis of copper and lead in wines, using an electrochemical quartz crystal nanobalance
Author: Yamasaki, Alzira
Oliveira, João A. B. P.
Duarte, Armando C.
Gomes, M. Teresa S. R.
Keywords: Electrochemical quartz crystal nanobalance
Issue Date: 30-Aug-2012
Publisher: Elsevier
Abstract: Copper and lead in wine were quantified by anodic stripping voltammetry (ASV), performed onto the gold electrode of a piezoelectric quartz crystal. Both current or mass changes could be used as analytical signals, without a statistical difference in the results (α=0.05). However, the plot of mass vs. potential provided an in depth understanding of the electrochemical processes and allowed studying adsorption phenomena. Copper interaction with fructose is an example of a process which was not possible to ignore by observing the mass change on the gold electrode of the piezoelectric quartz crystal.
Peer review: yes
DOI: 10.1016/j.talanta.2012.06.025
ISSN: 0039-9140
Appears in Collections:CESAM - Artigos
DQ - Artigos

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