Poly (3-(3-pyridyl) acrylic acid) modified glassy carbon electrode for simultaneous determination of dopamine, ascorbic acid and uric acid.

Poly (3-(3-pyridyl) acrylic acid) modified glassy carbon electrode for simultaneous determination of dopamine, ascorbic acid and uric acid. Research Abstract Details 

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Poly (3-(3-pyridyl) acrylic acid) modified glassy carbon electrode for simultaneous determination of dopamine, ascorbic acid and uric acid. Abstract Text:

Yuzhong Zhang,Shao Su,Yan Pan,Liping Zhang,Yuejuan Cai,Yuzhong Zhang,Shao Su,Yan Pan,Liping Zhang,Yuejuan Cai,

Trans-3-(3-pyridyl) acrylic acid (PAA) was deposited on glassy carbon electrode (GCE) by electropolymerization in pH 7.0 phosphate buffer solution (PBS). The poly (3-(3-pyridyl) acrylic acid) (PPAA) film modified glassy carbon electrode shows an excellent electrochemical response for dopamine (DA), ascorbic acid (AA) and uric acid (UA). The cyclic voltammetry oxidation peaks for DA and AA, DA and UA, AA and UA are separated by 150 mV, 130 mV and 280 mV, respectively. This permits the simultaneous determination of AA, DA and UA. The interference of AA with the determination of DA could be eliminated because of the electrostatic interaction between DA cations and the negatively charged PPAA film at pH 7.0. The anodic peak currents of DA, AA and UA increase linearly with concentration in the range of 1-40 micromol L(-1), 10-400 micromol L(-1) and 1.6-80 micromol L(-1), respectively, with a correlation coefficient (r) always higher than 0.998. The detection limit is 0.06 micromol L(-1), 0.8 micromol L(-1) and 1.1 micromol L(-1) for DA, AA and UA, respectively.

Poly (3-(3-pyridyl) acrylic acid) modified glassy carbon electrode for simultaneous determination of dopamine, ascorbic acid and uric acid. Publishing Authors By Initials

Y Zhang,S Su,Y Pan,L Zhang,Y Cai,Y Zhang,S Su,Y Pan,L Zhang,Y Cai,

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Poly (3-(3-pyridyl) acrylic acid) modified glassy carbon electrode for simultaneous determination of dopamine, ascorbic acid and uric acid. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Annali di chimica

VOLUME: 97

Page Numbers: 665-74

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ISSN: 0003-4592

DAY: 28

MONTH: Aug

YEAR: 2007

Poly (3-(3-pyridyl) acrylic acid) modified glassy carbon electrode for simultaneous determination of dopamine, ascorbic acid and uric acid. Information

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LANGUAGE: eng

NlmUniqueID: 7610375

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Grant and Affiliation Information for Poly (3-(3-pyridyl) acrylic acid) modified glassy carbon electrode for simultaneous determination of dopamine, ascorbic acid and uric acid.

AFFILIATION: College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000, P.R. China. zhangyz65@hotmail.com

Country: Italy

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MEDLINETA: Ann Chim

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