Detection of Several Carbohydrates Using Boron-doped Diamond Electrodes Modified with Nickel Hydroxide Nanoparticles

被引：4

作者：

Teixeira, Milena E. ^{[1
]}

Sedenho, Graziela C. ^{[1
]}

Stradiotto, Nelson R. ^{[1
]}

机构：

[1] Univ Estadual Paulista UNESP, Inst Chem, Dept Analyt Chem, BR-14800060 Araraquara, Brazil

来源：

ANALYTICAL SCIENCES | 2015年 / 31卷 / 08期

基金：

巴西圣保罗研究基金会;

关键词：

Carbohydrates; nickel nanoparticles; modified boron-doped diamond electrode; voltammetry; GLASSY-CARBON ELECTRODE; SENSITIVE SIMULTANEOUS DETERMINATION; NONENZYMATIC GLUCOSE; ASCORBIC-ACID; ELECTROCATALYTIC OXIDATION; VOLTAMMETRIC DETERMINATION; ELECTROCHEMICAL OXIDATION; OXIDE NANOPARTICLES; SUGARCANE BAGASSE; SENSOR;

D O I：

10.2116/analsci.31.773

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this work the electrooxidations of glucose, galactose, mannose, rhamnose, xylose and arabinose are studied at a nickel hydroxide nanoparticle modified boron-doped diamond electrode and compared to an unmodified electrode. These carbohydrates are very important in the second-generation ethanol production process. Nickel hydroxide modified boron-doped diamond was characterized by scanning electron microscopy and energy dispersive X-ray. Electrochemical impedance spectroscopy was employed to study the interface properties of surface-modified electrodes in the absence and presence of the carbohydrates. Limits of detection were 5.3 x 10(-5), 6.8 x 10(-5), 2.7 x 10(-4), 6.9 x 10(-5), 8.8 x 10(-5) and 2.6 x 10(-5) mol L-1 for glucose, galactose, mannose, rhamnose, arabinose, xylose, respectively.

引用

页码：773 / 780

页数：8

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