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The electrodes were examined for the sensing of oxalate ions in aqueous solutions and all three electrodes showed a response to oxalate additions. The peak of oxalate oxidation at BPPG electrode appeared at lower potential, +1.13\u2005V vs. SCE, than at EPPG (+1.20\u2005V vs. SCE) and GC electrode (+1.44\u2005V vs. SCE). Oxalate oxidation at BPPG electrode was studied in more details for response characteristics (potential and current), effects of pH, temporal characteristics of response potential and current. The results indicated that oxalate oxidation proceeds as two\u2010electron process at the BPPG electrode with a transfer coefficient <jats:italic>\u03b2<\/jats:italic> and a diffusion coefficient <jats:italic>D<\/jats:italic> evaluated to be 0.45 and 1.03 (\u00b10.04)\u00d710<jats:sup>\u22125<\/jats:sup> cm<jats:sup>2<\/jats:sup> s<jats:sup>\u22121<\/jats:sup> respectively. The BPPG electrode was found to be suitable for oxalate determination in aqueous media showing linear response to oxalate concentration with a sensitivity of 0.039\u2005AM<jats:sup>\u22121<\/jats:sup> and a limit of detection of 0.7\u2005\u03bcM.<\/jats:p>","DOI":"10.1002\/elan.200703852","type":"journal-article","created":{"date-parts":[[2007,4,27]],"date-time":"2007-04-27T08:46:41Z","timestamp":1177663601000},"page":"918-922","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":35,"title":["Electrochemical Determination of Oxalate at Pyrolytic Graphite Electrodes"],"prefix":"10.1002","volume":"19","author":[{"given":"Biljana","family":"\u0160ljuki\u0107","sequence":"first","affiliation":[]},{"given":"Ronan","family":"Baron","sequence":"additional","affiliation":[]},{"given":"Richard\u2005G.","family":"Compton","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2007,4,27]]},"reference":[{"key":"e_1_2_1_1_2","first-page":"431","volume":"7","author":"Sharma S. 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