An Electrochemical Sensor for Reducing Sugars Based on a Glassy Carbon Electrode Modified with Electropolymerized Molecularly Imprinted Poly-o-phenylenediamine Film

Author(s)

Wang, Qian ^[1] ; Paim, Leonardo Lataro ^[2] ; Zhang, Xiuhua ^[1] ; Wang, Shengfu ^[1] ; Stradiotto, Nelson Ramos ^[2]

Affiliation

^[1] Hubei Univ, Coll Chem & Chem Engn, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei Province - Peoples R China

^[2] UNESP Univ Estadual Paulista, Inst Chem, Dept Analyt Chem, BR-14800900 Araraquara, SP - Brazil

• Document type: Journal article
• Source: Electroanalysis; v. 26, n. 7, p. 1612-1622, JUL 2014.
• Web of Science Citations: 12

Abstract

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. (AU)

• FAPESP's process: 11/20416-1 - Development of electrochemical detectors consisting of metal nanoparticles on BDD and CNT for the determination of carbohydrates in lignocellulosic material of sugar cane using HPLC
• Grantee: Leonardo Lataro Paim
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 12/00258-5 - Development of new methods for determination of sugars, furanic aldehydes and ironic acids from lignocellulosic materials derivatives of cane sugar
• Grantee: Nelson Ramos Stradiotto
• Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants