GRAPHITE-ARALDITE® COMPOSITE ELECTRODE: DIDACTIC APPLICATIONS

被引:6
作者
Fioramonti Calixto, Carolina Maria [1 ]
Cervini, Priscila [1 ]
Gomes Cavalheiro, Eder Tadeu [1 ]
机构
[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
来源
QUIMICA NOVA | 2008年 / 31卷 / 08期
关键词
composite electrode; electroanalysis; graphite-epoxy composites;
D O I
10.1590/S0100-40422008000800048
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A composite electrode prepared by mixing a commercial epoxy resin Araldite (R) 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.
引用
收藏
页码:2194 / 2198
页数:5
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