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Electrochemical Behavior of Menadione on Glassy Carbon Rotating Disk Electrode (RDE)

2000; Wiley; Volume: 12; Issue: 10 Linguagem: Inglês

10.1002/1521-4109(200006)12

1521-4109

Lydia Alonso, Susana Palmero, Emma Muñoz, S. Sanllorente, M. Angeles García-García,

Electrochemical sensors and biosensors

ElectroanalysisVolume 12, Issue 10 p. 757-762 Article Electrochemical Behavior of Menadione on Glassy Carbon Rotating Disk Electrode (RDE) Lydia Alonso, Lydia Alonso Universidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainSearch for more papers by this authorSusana Palmero, Susana Palmero Universidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainSearch for more papers by this authorEmma Muñoz, Emma Muñoz Universidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainSearch for more papers by this authorSilvia Sanllorente, Silvia Sanllorente Universidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainSearch for more papers by this authorM. Angeles García-García, Corresponding Author M. Angeles García-García [email protected] Universidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainUniversidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainSearch for more papers by this author Lydia Alonso, Lydia Alonso Universidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainSearch for more papers by this authorSusana Palmero, Susana Palmero Universidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainSearch for more papers by this authorEmma Muñoz, Emma Muñoz Universidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainSearch for more papers by this authorSilvia Sanllorente, Silvia Sanllorente Universidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainSearch for more papers by this authorM. Angeles García-García, Corresponding Author M. Angeles García-García [email protected] Universidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainUniversidad de Burgos, Facultad de Ciencias, Departamento de Química, Pza. Misael Bañuelos s/n, E-09001 Burgos, SpainSearch for more papers by this author First published: 05 July 2000 https://doi.org/10.1002/1521-4109(200006)12:10 3.0.CO;2-BCitations: 7AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The 2-methyl-1,4-naphthoquinone electrochemical behavior on glassy carbon rotating disk electrode has been the focus of this study. In order to obtain the best results, the optimal conditions for this voltammetric study have been determined, by performing a chemometric analysis of the data. The influence of five factors on the diffusion current has been studied, finding that the greatest effect is due to three of them. The optimum values for all of these parameters were: pH 7, v (potential sweep rate)=87.1 mV/s, Cmet (methanol concentration)=4.14 %(v/v), teq (equilibrium time)=2.5 min, and tdea (purge time)=2 min. These data were used to determine the mass transfer parameters: diffusion coefficient (D=(1.4±0.3)×10–4 cm2/s) and diffusion layer thickness (δ=(6.6±0.5)×10–3 cm), the kinetic parameters: charge transfer constant (K0=2.91×10–6 cm/s) and charge transfer coefficient (α=0.248), and the standard potential (E0=0.083±0.011 V). Citing Literature Volume12, Issue10June 2000Pages 757-762 RelatedInformation