Electrocatalytic oxidation and determination of dopamine in the presence of ascorbic acid and uric acid at a poly (4-(2-pyridyl-azo)-resorcinol) modified glassy carbon electrode

被引：57

作者：

Chen, Jinghua ^{[1
]}

Zhang, Jing

Lin, Xinhua

Wan, Hongyan

Zhang, Shaobo

机构：

[1] Fujian Med Univ, Dept Analyt Chem & Pharmaceut Anal, Fuzhou 350004, Peoples R China

[2] Fujian Coll Med Occupat & Technol, Dept Pharmaceut, Fuzhou 350101, Peoples R China

来源：

ELECTROANALYSIS | 2007年 / 19卷 / 05期

关键词：

poly-PAR modified GCE; electrocatalysis; DA; UA; AA;

D O I：

10.1002/elan.200603755

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A sensitive and selective electrochemical method for the determination of dopamine (DA) was developed using a 4(2-Pyridylazo)-Resorcinol (PAR) polymer film modified glassy carbon electrode (GCE). The PAR polymer film modified electrode shows excellent electrocatalytic activity toward the oxidation of DA in a phosphate buffer solution (PBS) (pH 4.0). The linear range of 5.0 x 10(-6) -3.0 x 10(-5) M and detection limit of 2.0 x 10(-7) M were observed. Simultaneous detection of AA, DA and UA has also been demonstrated on the modified electrode. This work provides a simple and easy approach to selective detection of DA in the presence of AA and UA.

引用

页码：612 / 615

页数：4

共 30 条

[21] ELECTROCHEMICAL POLYMERIZATION OF AROMATIC-AMINES - IR, XPS AND PMT STUDY OF THIN-FILM FORMATION ON A PT ELECTRODE [J].

VOLKOV, A ;

TOURILLON, G ;

LACAZE, PC ;

DUBOIS, JE .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1980, 115 (02) :279-291

[22]

WANG J, 1990, ELECTROANAL, V2, P861

[23] DETECTION OF DOPAMINE DYNAMICS IN THE BRAIN [J].

WIGHTMAN, RM ;

MAY, LJ ;

MICHAEL, AC .

ANALYTICAL CHEMISTRY, 1988, 60 (13) :A769-&

[24] Electrochemical properties of a tetrabromo-p-benzoquinone modified carbon paste electrode.: Application to the simultaneous determination of ascorbic acid, dopamine and uric acid [J].

Zare, HR ;

Nasirizadeh, N ;

Mazloum-Ardakani, M .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2005, 577 (01) :25-33

[25] Voltammetric studies of an oracet blue modified glassy carbon electrode and its application for the simultaneous determination of dopamine, ascorbic acid and uric acid [J].

Zare, HR ;

Rajabzadeh, N ;

Nasirizadeh, N ;

Mazloum-Ardakani, M .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2006, 589 (01) :60-69

[26] A selective voltammetric method for uric acid and dopamine detection using clay modified electrodes [J].

Zen, JM ;

Chen, PJ .

ANALYTICAL CHEMISTRY, 1997, 69 (24) :5087-5093

[27] Poly(4-vinylpyridine)-coated chemically modified electrode for the detection of uric acid in the presence of a high concentration of ascorbic acid [J].

Zen, JM ;

Chen, YJ ;

Hsu, CT ;

Ting, YS .

ELECTROANALYSIS, 1997, 9 (13) :1009-1013

[28] Voltammetric peak separation of dopamine from uric acid in the presence of ascorbic acid at greater than ambient solution temperatures [J].

Zen, JM ;

Hsu, CT ;

Hsu, YL ;

Sue, JW ;

Conte, ED .

ANALYTICAL CHEMISTRY, 2004, 76 (14) :4251-4255

[29] Determination of dopamine in the presence of ascorbic acid by poly(styrene. sulfonic acid) sodium salt/single-wall carbon nanotube film modified glassy carbon electrode [J].

Zhang, YZ ;

Cai, YJ ;

Su, S .

ANALYTICAL BIOCHEMISTRY, 2006, 350 (02) :285-291

[30] Selective detection of dopamine in the presence of ascorbic acid and uric acid by a carbon nanotubes-ionic liquid gel modified electrode [J].

Zhao, YF ;

Gao, YQ ;

Zhan, DP ;

Liu, H ;

Zhao, Q ;

Kou, Y ;

Shao, YH ;

Li, MX ;

Zhuang, QK ;

Zhu, ZW .

TALANTA, 2005, 66 (01) :51-57

← 1 2 3 →