An Electrochemical Sensor for Reducing Sugars Based on a Glassy Carbon Electrode Modified with Electropolymerized Molecularly Imprinted Poly-o-phenylenediamine Film
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Data
2014-07-01
Autores
Wang, Qian
Paim, Leonardo Lataro [UNESP]
Zhang, Xiuhua
Wang, Shengfu
Stradiotto, Nelson Ramos [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Wiley-Blackwell
Resumo
An electrochemical sensor based on electropolymerizing o-phenylenediamine (o-PD) on a glassy carbon electrode (GCE) was developed for determination of reducing sugars. The molecular imprinted sensor was tested by differential pulse voltammetry (DPV) to verify the changes in peak currents of hexacyanoferrate. Under the optimum analytical conditions, the current change was linear to the logarithm of glucose and fructose concentration from 0.25 to 25 mu M. The detection limit of glucose and fructose were 0.185 mu M and 0.173 mu M, respectively. Besides, the applicability of the sensitive sensor has been successfully evaluated by determining reducing sugars in the samples from sugarcane industries.
Descrição
Palavras-chave
Reducing sugars, o-Phenylenediamine, Differential pulse voltammetry, Molecularly imprinted polymers
Como citar
Electroanalysis. Weinheim: Wiley-v C H Verlag Gmbh, v. 26, n. 7, p. 1612-1622, 2014.