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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.)

Nickel hydroxide electrodes as amperometric detectors for carbohydrates in flow injection analysis and liquid chromatography

Full text
Author(s):
Vidotti, Marcio [1, 2] ; Cerri, Carolina D. [1] ; Carvalhal, Rafaela F. [1, 2] ; Dias, Jailson C. [1, 2] ; Mendes, Renata K. [1, 2] ; Cordoba de Torresi, Susana I. [3, 2] ; Kubota, Lauro T. [1, 2]
Total Authors: 7
Affiliation:
[1] Univ Estadual Campinas, Inst Quim, BR-13083970 Campinas, SP - Brazil
[2] Inst Nacl Ciencia & Tecnol Bioanalit, BR-13083970 Campinas, SP - Brazil
[3] Univ Sao Paulo, Inst Quim, BR-05513970 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: JOURNAL OF ELECTROANALYTICAL CHEMISTRY; v. 636, n. 1-2, p. 18-23, NOV 15 2009.
Web of Science Citations: 49
Abstract

The present paper describes the utilization of nickel hydroxide modified electrodes toward the catalytic oxidation of carbohydrates (glucose, fructose, lactose and sucrose) and their utilization as electrochemical sensor. The modified electrodes were employed as a detector in flow injection analysis for individual carbohydrate detection, and to an ionic column chromatography system for multi-analyte samples aiming a prior separation step. Kinetic studies were performed on a rotating disk electrode (RDE) in order to determine both the heterogeneous rate constant and number of electrons transferred for each carbohydrate. Many advantages were found for the proposed system including fast and easy handling of the electrode modification, low cost procedure, a wide range of linearity (0.5-50 ppm), low detection limits (ppb level) and high sensitivities. (C) 2009 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 06/05003-4 - Development of biosensors based on antigen-antibody interaction for Asian rust on soybeans early detection
Grantee:Renata Kelly Mendes Valente
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 06/03960-1 - Development and validation of method for the simultaneous determination of copper, iron, sodium, nitrate and acetate ions in fuel ethanol using ion chromatography
Grantee:Jailson Cardoso Dias
Support Opportunities: Scholarships in Brazil - Doctorate