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Nickel hydroxide electrodes as amperometric detectors for carbohydrates in flow injection analysis and liquid chromatography
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Vidotti, Marcio, Cerri, Carolina D., Carvalhal, Rafaela F., Dias, Jailson C., Mendes, Renata K., Cordoba de Torresi, Susana I. and Kubota, Lauro T. (2009) Nickel hydroxide electrodes as amperometric detectors for carbohydrates in flow injection analysis and liquid chromatography. Journal of Electroanalytical Chemistry, Vol.636 (No.1-2). pp. 18-23. doi:10.1016/j.jelechem.2009.09.006 ISSN 1572-6657.
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Official URL: http://dx.doi.org/10.1016/j.jelechem.2009.09.006
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.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Journal or Publication Title: | Journal of Electroanalytical Chemistry | ||||
Publisher: | Elsevier Science SA | ||||
ISSN: | 1572-6657 | ||||
Official Date: | 15 November 2009 | ||||
Dates: |
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Volume: | Vol.636 | ||||
Number: | No.1-2 | ||||
Number of Pages: | 6 | ||||
Page Range: | pp. 18-23 | ||||
DOI: | 10.1016/j.jelechem.2009.09.006 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | Fapesp, CNPq | ||||
Grant number: | 06/05003-4, 06/03960-1, 200261/2008-8 |
Data sourced from Thomson Reuters' Web of Knowledge
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