An electrochemical sensor based on carbon nanotubes and a new Schiff base for selective determination of dopamine in the presence of uric acid, folic acid, and acetaminophen

被引：12

作者：

Mazloum-Ardakani, Mohammad ^{[1
]}

Naser-Sadrabadi, Abolfazl ^{[1
]}

Sheikh-Mohseni, Mohammad Ali ^{[2
]}

Benvidi, Ali ^{[1
]}

Naeimi, Hossein ^{[3
]}

Karshenas, Azam ^{[3
]}

机构：

[1] Yazd Univ, Dept Chem, Fac Sci, Yazd 89195741, Iran

[2] Urmia Univ, Fac Educ Ctr Miandoab, Orumiyeh, Iran

[3] Univ Kashan, Dept Organ Chem, Fac Chem, Kashan 87317, Iran

来源：

IONICS | 2013年 / 19卷 / 11期

关键词：

Selective determination; Carbon nanotubes; Dopamine; Uric acid; Folic acid; Acetaminophen; ASCORBIC-ACID; MASS-SPECTROMETRY; ELECTRODE; LIQUID; NOREPINEPHRINE; FABRICATION; NANOPARTICLES; PARACETAMOL; COMPOSITE; POLYMER;

D O I：

10.1007/s11581-013-0879-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, the electrochemical properties of a carbon paste electrode modified by a synthesized Schiff base, 2,2'-[1,4-phenylenediyl-bis(nitrilomethyl-idene)]-bis(4-hydroxyphenol), and carbon nanotubes were studied by cyclic voltammetry. The modified electrode was used as an electrochemical sensor for catalytic oxidation of dopamine (DA). Differential pulse voltammetry (DPV) of DA by this electrochemical sensor exhibited two linear dynamic ranges with a detection limit (3 sigma) of 0.42 mu M. Also, the selectivity of the prepared electrochemical sensor was checked for determination of DA in the presence of uric acid (UA), folic acid (FA), and acetaminophen (AC). The DPV results indicate that the proposed sensor can be used for simultaneous determination of DA, UA, and FA and also simultaneous determination of DA and AC. Finally, the proposed electrochemical sensor was used for determinations of these substances in real sample.

引用

页码：1663 / 1671

页数：9

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