Evaluation of a new rigid carbon-castor oil polyurethane composite as an electrode material.
Polyurethane resin derived from castor oil was used to prepare a graphite composite intented to be applied in voltammetry. The best graphite/resin content in the composite was evaluated using cyclic voltammetry. The useful potential window was investigated in different electrolytes with pH ranging from 1 to 13, with good results in relation to the glassy carbon electrode. Response of this new electrode material to ferricyanide, hydroquinone, catechol and cadmium(II) ions was investigated in cyclic voltammetry and/or differential pulse voltammetry. The composite showed to be also useful in flow procedures.
Mendes
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RK
Departamento de Quimica, Universidade Federal de São Carlos, Via Washington Luis km 235, C.P. 676, 13565-905 São Carlos/SP, Brazil.
Claro-Neto
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Cavalheiro
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