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

Autor(es)

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

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: Electroanalysis; v. 26, n. 7, p. 1612-1622, JUL 2014.
• Citações Web of Science: 12

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. (AU)

• Processo FAPESP: 11/20416-1 - Desenvolvimento de detectores eletroquímicos constituídos de nanopartículas metálicas em BDD e CNT para determinação de carboidratos em material lignocelulósico de cana de açúcar utilizando CLAE
• Beneficiário: Leonardo Lataro Paim
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 12/00258-5 - Desenvolvimento de novos métodos para determinação de açúcares, aldeídos furânicos e ácidos urónicos em materiais lignocelulósicos derivados de cana-de-açúcar
• Beneficiário: Nelson Ramos Stradiotto
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular