A Novel Strategy for Simultaneous Determination of Dopamine and Uric Acid Using a Carbon Paste Electrode Modified with CdTe Quantum Dots

被引：50

作者：

Beitollahi, Hadi ^{[1
]}

Hamzavi, Mozhdeh ^{[2
]}

Torkzadeh-Mahani, Masoud ^{[3
]}

Shanesaz, Maryam ^{[4
]}

Maleh, Hassan Karimi ^{[2
]}

机构：

[1] Grad Univ Adv Technol, Inst Sci & High Technol & Environm Sci, Dept Environm, Kerman, Iran

[2] Grad Univ Adv Technol, Dept Chem, Kerman, Iran

[3] Grad Univ Adv Technol, Inst Sci & High Technol & Environm Sci, Dept Biotechnol, Kerman, Iran

[4] RIPI, Analyt Chem Res Grp, Tehran, Iran

来源：

ELECTROANALYSIS | 2015年 / 27卷 / 02期

关键词：

Dopamine; Uric acid; Carbon paste electrode; CdTe quantum dots; PYROLYTIC-GRAPHITE ELECTRODE; MODIFIED GLASSY-CARBON; ASCORBIC-ACID; ELECTROCHEMICAL SENSOR; SELECTIVE DETERMINATION; GOLD ELECTRODE; FOLIC-ACID; NANOTUBES; OXIDATION; NANOPARTICLES;

D O I：

10.1002/elan.201400635

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel CdTe quantum dots-modified carbon paste electrode (QDMCPE) was fabricated and used to study the electrooxidation of dopamine and uric acid and their mixtures by electrochemical methods. Using square wave voltammetry (SWV), a highly sensitive and simultaneous determination of dopamine and uric acid was explored at the modified electrode. SWV peak currents of dopamine and uric acid increased linearly with their concentrations in the ranges of 7.5 x 10(-8)-6.0x10(-4) M, and 7.5 x 10(-6)-1.4 x 10(-3) M, respectively. Finally this new sensor was used for determination of dopamine and uric acid in some real samples.

引用

页码：524 / 533

页数：10

共 46 条

[11] An 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid)-immobilized electrode for the simultaneous detection of dopamine and uric acid in the presence of ascorbic acid [J].