ElectrochemicaldeterminationofvitaminCinthepresenceofuricacidbyanovelTiO2nanoparticlesmodifiedcarbonpasteelectrode

被引：0

作者：

Mohammad MazloumArdakani ^{[1
]}

Mohammad Ali SheikhMohseni ^{[1
]}

Hadi Beitollahi ^{[1
]}

Ali Benvidi ^{[1
]}

Hossein Naeimi ^{[2
]}

机构：

[1] Department of Chemistry,Faculty of Science,Yazd University,Yazd,-,IRIran

[2] Department of Organic Chemistry,Faculty of Chemistry,University of Kashan,Kashan,IRIran

来源：

ChineseChemicalLetters | 2010年 / 21卷 / 12期

关键词：

Ascorbic acid; Uric acid; TiO2; nanoparticles; Electrocatalysis; Modified carbon paste electrode;

D O I：

暂无

中图分类号：

O657.1 [电化学分析法];

学科分类号：

070302 ; 081704 ;

摘要：

<正>The electrochemical behavior of vitamin C（ascorbic acid or AA） is investigated on the surface of a carbon-paste electrode modified with TiO2 nanoparticles and 2,2'-(1,2 butanediylbis（nitriloethylidyne）)-bis-hydroquinone（BBNBH）.The prepared modified electrode showed an efficient catalytic role in the electrochemical oxidation of AA,leading to remarkable decrease in oxidation overpotential and enhancement of the kinetics of the electrode reaction.This modified electrode exhibits well-separated oxidation peaks for AA and uric acid（UA）.The modified electrode is successfully applied for the accurate determination of AA in pharmaceutical preparations.

引用

页码：1471 / 1474

页数：4