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Current Topics in Electrochemistry   Volumes    Volume 17 
Determination of cobalt-pilocarpine complex with mercury modified gold quartz crystal microbalance electrode
Lai-Hao Wang, Yi-Chieh Li
Pages: 65 - 74
Number of pages: 10
Current Topics in Electrochemistry
Volume 17 

Copyright © 2012 Research Trends. All rights reserved

Mercury films on gold/quartz electrodes were prepared using a potentiostatic method and a potentiodynamic method: the repeated cyclic voltammetry technique. The film formation was confirmed using the electrochemical quartz crystal microbalance method; 17 µg of mercury film was deposited per cycle. The electrochemical deposition of mercury film on the gold/quartz substrate was evaluated with respect to a quartz crystal microbalance cell, deposition time, and the concentration of mercury. Electrochemical studies have shown that cobalt (II), pilocarpine, and a cobalt-pilocarpine complex are catalytically reduced more efficiently on a mercury-modified gold/quartz electrode than on a bare gold/quartz electrode. In addition, atomic force microscopy images clearly showed the structure of the adsorbed cobalt-pilocarpine complex molecule layers on mercury-modified gold/quartz electrode.
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