Voltammetric Determination of Dopamine Using Glassy Carbon Electrode Modified with ZnO/Al2O3 Nanocomposite

被引：104

作者：

Ganjali, Mohammad Reza ^{[1
,2
]}

Beitollahi, Hadi ^{[3
]}

Zaimbashi, Reza ^{[4
]}

Tajik, Somayeh ^{[5
]}

Rezapour, Morteza ^{[6
]}

Larijani, Bagher ^{[7
]}

机构：

[1] Univ Tehran, Sch Chem, Coll Sci, Ctr Excellence Electrochem, Tehran, Iran

[2] Univ Tehran Med Sci, Biosensor Res Ctr, Endocrinol & Metab Mol Cellular Sci Inst, Tehran, Iran

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

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

[5] Bam Univ Med Sci, Bam, Iran

[6] RIPI, IP Dept, POB 14665-137, Tehran, Iran

[7] Univ Tehran Med Sci, Endocrinol & Metab Res Ctr, Endocrinol & Metab Clin Sci Inst, Tehran, Iran

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2018年 / 13卷 / 03期

关键词：

Dopamine; Glassy carbon electrode; ZnO/Al2O3; nanocomposite; Modified electrode; SCREEN-PRINTED ELECTRODE; REDUCED GRAPHENE OXIDE; SIMULTANEOUS ELECTROCHEMICAL DETERMINATION; SUPERPARAMAGNETIC FE3O4 NANOPARTICLES; CONTINUOUS CYCLIC VOLTAMMETRY; PASTE ELECTRODE; ASCORBIC-ACID; PHARMACEUTICAL FORMULATIONS; URIC-ACID; SUPERCAPACITIVE PERFORMANCE;

D O I：

10.20964/2018.03.11

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this work, a new modification strategy was reported to modify a glassy carbon electrode (GCE) based on ZnO/Al2O3 nanocomposite. This modified electrode was designed in order to be used as a sensitive and selective sensor towards detection of trace amount of dopamine (DA). The effective parameters on the optimal performances of the electrode such as pH of the test solution and the applied scan rate during the electrochemical process were also studied. This sensor responded linearly towards detection of dopamine within a wide range of 5.0x10(-6)-7.0x10(-4) M with a low detection limit of 2.0 x 10(-6) M (pH=7.0), under the optimum conditions. Moreover, the electrode functioned in the determination of dopamine in real samples was satisfactory.

引用

页码：2519 / 2529

页数：11

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[1] Electrochemical evaluation of the performance of cathodically grown ultra-fine magnetite nanoparticles as electrode material for supercapacitor applications [J].