Sensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stability

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dc.contributor.authorDe Mattos, Ivanildo Luiz [UNESP]
dc.contributor.authorGorton, Lo
dc.contributor.authorRuzgas, Tautgirdas
dc.contributor.authorKaryakin, Arkady A.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionLund University
dc.contributor.institutionM. V. Lomonosov Moscow State University
dc.date.accessioned2014-05-27T11:19:57Z
dc.date.available2014-05-27T11:19:57Z
dc.date.issued2000-09-13
dc.description.abstractImprovement of the operational stability of amperometric sensors based on Prussian Blue (PB) modified glassy carbon electrodes is presented. The long term performance of the sensors was evaluated by injection of hydrogen peroxide (5 μM in potassium buffer) solutions in a flow-injection system during a period of 5-10 h. The following parameters were investigated and correlated with the performance of the sensor: the times for electrodeposition and electrochemical activation, temperature, storage time, pH, composition of the buffer solution and of volume sample injected. These analytical characteristics of the modified electrode can be emphasized: initial sensitivity of 0.3 A cm-2 M-1, detection limit of ca. 0.5 μM, precise results (r.s.d.< 1.5%) and possibility to carry out around 50 samples (50 μL) per hour.en
dc.description.affiliationDepartamento de Química Faculdade de Ciências UNESP, P. O. Box 473, 17033-360 Bauru-SP
dc.description.affiliationDepartment of Analytical Chemistry Lund University, P. O. Box 124, SE-22100 Lund
dc.description.affiliationDepartment of Chemistry M. V. Lomonosov Moscow State University
dc.description.affiliationUnespDepartamento de Química Faculdade de Ciências UNESP, P. O. Box 473, 17033-360 Bauru-SP
dc.format.extent795-798
dc.identifierhttp://dx.doi.org/10.2116/analsci.16.795
dc.identifier.citationAnalytical Sciences, v. 16, n. 8, p. 795-798, 2000.
dc.identifier.doi10.2116/analsci.16.795
dc.identifier.fileWOS000088949200003.pdf
dc.identifier.issn0910-6340
dc.identifier.scopus2-s2.0-0033846525
dc.identifier.urihttp://hdl.handle.net/11449/66248
dc.identifier.wosWOS:000088949200003
dc.language.isoeng
dc.relation.ispartofAnalytical Sciences
dc.relation.ispartofjcr1.355
dc.relation.ispartofsjr0,424
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectbuffer
dc.subjectferric ferrocyanide
dc.subjecthydrogen peroxide
dc.subjectchemical modification
dc.subjectelectrochemistry
dc.subjectelectrode
dc.subjectflow injection analysis
dc.subjectpH measurement
dc.subjectreaction analysis
dc.subjectsensor
dc.titleSensor for hydrogen peroxide based on Prussian Blue modified electrode: Improvement of the operational stabilityen
dc.typeArtigo
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentQuímica - FCpt

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