Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/5132
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dc.contributor.authorRebelo, Isabel-
dc.contributor.authorPiedade, José António P.-
dc.contributor.authorBrett, Ana Maria Oliveira-
dc.date.accessioned2008-09-01T15:04:30Z-
dc.date.available2008-09-01T15:04:30Z-
dc.date.issued2004en_US
dc.identifier.citationBioelectrochemistry. 63:1-2 (2004) 267-270en_US
dc.identifier.urihttp://hdl.handle.net/10316/5132-
dc.description.abstractThe electrochemical oxidation of 8-oxoguanine (8-oxoG) in the presence of uric acid (UA) was studied by differential pulse voltammetry over a wide pH range (1-12). The results showed that both compounds follow a pH-dependent oxidation mechanism that involves two electrons and two protons corresponding to reversible charge transfer reactions. The difference between the peak potential for the oxidation of each analyte was found to be always less than 100 mV over the whole pH range, the separation being greater in the pH interval 4-7. In mixtures of both analytes, pH 6 was shown to be the best for 8-oxoG determination in the presence of uric acid, since the peak current is higher and a greater peak separation is achieved.en_US
dc.description.urihttp://www.sciencedirect.com/science/article/B6W72-4BT8CHG-4/1/3055f9e7d945bd40f78b853c25e10d31en_US
dc.format.mimetypeaplication/PDFen
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subject8-Oxoguanineen_US
dc.subjectUric aciden_US
dc.subjectOxidationen_US
dc.subjectVoltammetryen_US
dc.subjectDifferential pulse voltammetryen_US
dc.titleElectrochemical determination of 8-oxoguanine in the presence of uric aciden_US
dc.typearticleen_US
dc.identifier.doi10.1016/j.bioelechem.2003.11.007-
item.fulltextCom Texto completo-
item.grantfulltextopen-
item.languageiso639-1en-
crisitem.author.deptFaculty of Sciences and Technology-
crisitem.author.parentdeptUniversity of Coimbra-
crisitem.author.researchunitCEMMPRE - Centre for Mechanical Engineering, Materials and Processes-
crisitem.author.orcid0000-0002-6244-0891-
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais
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