Artículos de revistas
Eletrodo compósito à base de grafite-araldite®: aplicações didáticas
Fecha
2008Registro en:
Química Nova, v.31, n.8, p.2194-2198, 2008
0100-4042
10.1590/S0100-40422008000800048
Autor
CALIXTO, Carolina Maria Fioramonti
CERVINI, Priscila
CAVALHEIRO, Éder Tadeu Gomes
Institución
Resumen
A composite electrode prepared by mixing a commercial epoxy resin Araldite® and graphite powder is proposed to be used in didactic experiments. The electrode is prepared by the students and applied in simple experiments to demonstrate the effect of the composite composition on the conductivity and the voltammetric response of the resulting electrode, as well as the response in relation to the scan rate dependence on mass transport. The possibility of using the composite electrode in quantitative analysis is also demonstrated.