Simultaneous Voltammetric Determination of Ascorbic Acid, Dopamine and Uric Acid by the Poly(alizarin yellow R)/GCE

被引：0

作者：

Zhang, Li ^{[1
]}

Wang, Hongyan ^{[1
]}

Wu, Jian ^{[1
]}

Liu, Qiao ^{[1
]}

Zhu, Yanyan ^{[1
]}

Zhang, Keying ^{[1
]}

Zhu, Guang ^{[1
]}

机构：

[1] Suzhou Univ, Sch Chem & Chem Engn, Anhui Key Lab Spin Electron & Nanomat, Suzhou 234000, Anhui, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2019年 / 14卷 / 08期

关键词：

Alizarin yellow R; Ascorbic acid; Dopamine; Uric acid; Electropolymerization; ELECTROCHEMICAL DETECTION; MODIFIED ELECTRODES; COMPOSITE; GRAPHENE; SENSOR; NANOFIBERS;

D O I：

10.20964/2019.08.16

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A glassy carbon electrode (GCE) modified with the poly(alizarin yellow R) (PAYR) film was prepared by an electropolymerization method. Ascorbic acid (AA), dopamine (DA) and uric acid (UA) were determined by this electrode, and its electrocatalytic activity toward AA, DA and UA oxidation was clearly demonstrated. The separate oxidation peak potentials of 178, 115 and 293 mV were found for AA/DA, DA/UA and AA/UA, respectively. The oxidation peak currents were linear with the respective compound concentrations, the linear ranges were 80 mu M to 2000 mu M (AA), 2.3 mu M to 17.5 mu M (DA) and 33 mu M to 330 mu M (UA), and the detection limits were 8.3 mu M, 0.42 mu M and 4.3 mu M, respectively. Additionally, this electrode exhibited excellent performances characteristics including good selectivity, reproducibility and stability and was successfully used to detect DA in a real sample with satisfactory results.

引用

页码：7623 / 7630

页数：8

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