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dc.contributor.author
Tesio, Alvaro Yamil
dc.contributor.author
Granero, Adrian Marcelo
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Fernandez, Hector
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Zon, María Alicia
dc.date.available
2019-01-28T14:51:24Z
dc.date.issued
2011-02
dc.identifier.citation
Tesio, Alvaro Yamil; Granero, Adrian Marcelo; Fernandez, Hector; Zon, María Alicia; Characterization of the surface redox process of adsorbed morin at glassy carbon electrodes; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 56; 1; 2-2011; 2321-2327
dc.identifier.issn
0013-4686
dc.identifier.uri
http://hdl.handle.net/11336/68707
dc.description.abstract
The thermodynamic and kinetics of the adsorption of morin (MOR) on glassy carbon (GC) electrodes in 0.2 moldm−3 phosphate buffer solutions (PBS, pH 7.00) was studied by both cyclic (CV) and square wave (SWV) voltammetries. The Frumkin adsorption isotherm was the best to describe the specific interaction of MOR with GC electrodes. The SWV allowed to characterize the thermodynamic and kinetics of surface quasi-reversible redox couple of MOR, using the combination of the ?quasi-reversible maximum? and the ?splitting of SW net peaks? methods. Average values obtained for the formal potential and the anodic transfer coefficient were (0.27±0.02)V and (0.59±0.09), respectively. Moreover, a value of formal rate constant (ks) of 87s−1 for the overall two-electron redox process was calculated. The SWV was also employed to generate calibration curves, which were linear in the range MOR bulk concentration (c∗ MOR) from 1.27×10−7 to 2.50×10−5 moldm−3. The lowest concentration experimentally measured for a signal to noise ratio of 3:1 was 1.25×10−8 moldm−3 (3 ppb).
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Morin
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Flavonoids
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Cyclic Voltammetry
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Square Wave Voltammetry
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Otras Ciencias Químicas
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Characterization of the surface redox process of adsorbed morin at glassy carbon electrodes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-09T14:21:35Z
dc.journal.volume
56
dc.journal.number
1
dc.journal.pagination
2321-2327
dc.journal.pais
Reino Unido
dc.description.fil
Fil: Tesio, Alvaro Yamil. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
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Fil: Granero, Adrian Marcelo. Universidad Nacional de Río Cuarto; Argentina
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Fil: Fernandez, Hector. Universidad Nacional de Río Cuarto; Argentina
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Fil: Zon, María Alicia. Universidad Nacional de Río Cuarto; Argentina
dc.journal.title
Electrochimica Acta
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0013468610015495
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org//10.1016/j.electacta.2010.11.037
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