Determination of hydroquinone in a square wave voltammetry procedure using a graphite-polyurethane composite electrode
v. 31 n. 4 (2006), Original articles
v. 31 n. 4 (2006)

Determination of hydroquinone in a square wave voltammetry procedure using a graphite-polyurethane composite electrode

Original articles
https://doi.org/10.26850/1678-4618eqj.v31.4.2006.p59-62
Publicado 2006-12-30
Priscila Cervini
Universidade de São Paulo, Instituto de Química, São Carlos, Brasil.
Éder Tadeu Gomes Cavalheiro
Universidade de São Paulo, Instituto de Química, São Carlos, Brasil.
PDF (English)

Palavras-chave

composite electrodes
polyurethane
square wave voltammetry

Como Citar

Cervini, P., & Cavalheiro, Éder T. G. (2006). Determination of hydroquinone in a square wave voltammetry procedure using a graphite-polyurethane composite electrode. Eclética Química, 31(4), 59–62. https://doi.org/10.26850/1678-4618eqj.v31.4.2006.p59-62
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Resumo

In order to a better characterization of a graphite-polyurethane composite intended to be used as a voltammetric sensor, the performance in a square wave voltammetric procedure was investigated. Using hydroquinone (HQ) as a probe, the electrode showed to be useful in square wave voltammetry with limit of detection of 0.28 µmol L-1, with recoveries between 99.1 and 101.5%. The results of the proposed method agreed with HPLC ones within 95% confidence level.

https://doi.org/10.26850/1678-4618eqj.v31.4.2006.p59-62
PDF (English)

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