Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/33966
DC FieldValueLanguage
dc.contributor.authorZen, J.M.en_US
dc.contributor.author曾志明zh_TW
dc.contributor.authorChung, H.H.en_US
dc.contributor.authorKumar, A.S.en_US
dc.date2000zh_TW
dc.date.accessioned2014-06-06T07:46:57Z-
dc.date.available2014-06-06T07:46:57Z-
dc.identifier.issn0003-2654zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/33966-
dc.description.abstractA disposable copper-plated screen-printed carbon electrode (CuSPE) was developed for the determination of hydrogen peroxide by flow injection analysis (FIA) at ambient temperature without deoxygenation. Cyclic voltammetry on the CuSPE in pH 7.4 phosphate buffer solution showed the growth of CuO and Cu2O. A well-defined reduction signal corresponding to the mediation of CuO and Cu2O occurred in the presence of hydrogen peroxide. The mechanistic study revealed that the reduction is a coupled-chemical reaction mechanism with the operation of pseudo-first order kinetics with respect to the concentration of Cu2O. The calculated electrochemical rate constant (k(e)) from Laviron's model is 13.7 s(-1). Systematic investigations were made to optimize the experimental parameters for hydrogen peroxide detection by FIA. With a poised potential of -0.3 V versus Ag/AgCl and a flow rate of 2 ml min(-1), the calibration curve was found to be linear up to 200 mu M hydrogen peroxide with a detection limit of 0.97 mu M (S/N = 3). The CuSPE is fairly stable for repetitive measurements.en_US
dc.language.isoen_USzh_TW
dc.relationAnalysten_US
dc.relation.ispartofseriesAnalyst, Volume 125, Issue 9, Page(s) 1633-1637.en_US
dc.relation.urihttp://dx.doi.org/10.1039/b004207men_US
dc.subjectprussian blueen_US
dc.subjectoxide-filmsen_US
dc.subjectelectrocatalytic reductionen_US
dc.subjectamperometricen_US
dc.subjectdetectionen_US
dc.subjectgraphite-electrodesen_US
dc.subjectcatalysisen_US
dc.subjectbiosensoren_US
dc.subjectoxidationen_US
dc.subjectglucoseen_US
dc.subjectpasteen_US
dc.titleFlow injection analysis of hydrogen peroxide on copper-plated screen-printed carbon electrodesen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1039/b004207mzh_TW
item.fulltextno fulltext-
item.languageiso639-1en_US-
item.openairetypeJournal Article-
item.cerifentitytypePublications-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextnone-
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