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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Simultaneous detection of ascorbic acid and dopamine with electrochemically pretreated carbon nitride electrodes: Comparison with boron-doped diamond electrodes

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Author(s):
Medeiros, R. A. [1] ; Benchick, A. [2, 3] ; Rocha-Filho, R. C. [1] ; Fatibello-Filho, O. [1] ; Saidani, B. [3] ; Debiemme-Chouvy, C. [2] ; Deslouis, C. [2]
Total Authors: 7
Affiliation:
[1] Univ Fed Sao Carlos, Dept Quim, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Paris 06, LISE UPR 15, CNRS, F-75005 Paris - France
[3] Univ Abderrahmane MIRA Bejaia, LTMGP, Fac Technol, Dept Genie Proc, Bejaia - Algeria
Total Affiliations: 3
Document type: Journal article
Source: Electrochemistry Communications; v. 24, p. 61-64, OCT 2012.
Web of Science Citations: 31
Abstract

Amorphous carbon nitride (a-CNx) electrodes were successfully tested as substitutes to boron-doped diamond (BDD) electrodes for the simultaneous voltammetric detection of dopamine (DA) and ascorbic acid (AA). For both materials, the same anodic pretreatment in alkaline medium was necessary to attain adequate and equivalent separation of the oxidation potential peaks. The electrochemical response of the a-CNx electrode in terms of peak current values and potentials was reproducible after each anodic pretreatment in alkaline medium. For BDD, DA oxidation was insensitive to anodic or cathodic pretreatments, whereas, for a-CNx, it was catalyzed by the anodic pretreatment. On the other hand, AA oxidation was catalyzed by the cathodic pretreatment for both electrodes. (C) 2012 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 11/00601-9 - Application of boron-doped diamond and amorphous carbon nitride electrodes for the simultaneous determination of drugs of different therapeutic groups in pharmaceutical formulations and urine samples
Grantee:Roberta Antigo Medeiros
Support Opportunities: Scholarships in Brazil - Post-Doctoral