A novel biosensor based on ZnO nanoparticle/1,3-dipropylimidazolium bromide ionic liquid-modified carbon paste electrode for square-wave voltammetric determination of epinephrine

被引：96

作者：

Sadeghi, Roya ^{[1
]}

Karimi-Maleh, Hassan ^{[2
]}

Bahari, Ali ^{[3
]}

Taghavi, Mehdi ^{[4
]}

机构：

[1] Islamic Azad Univ, Dept Phys, Sci & Res Branch, Mazandaran, Iran

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

[3] Univ Mazandaran, Dept Solid State Phys, Babol Sar, Iran

[4] Univ Mazandaran, Dept Chem, Polymer Chem Res Lab, Babol Sar 4741695447, Iran

来源：

PHYSICS AND CHEMISTRY OF LIQUIDS | 2013年 / 51卷 / 06期

关键词：

epinephrine; ionic liquid; ZnO nanoparticle; sensor; modified electrode; SELECTIVE DETERMINATION; THIN-FILMS; URIC-ACID; NANOTUBES; SENSOR; NOREPINEPHRINE; PENICILLAMINE; ACETAMINOPHEN; GLUTATHIONE;

D O I：

10.1080/00319104.2013.782547

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：

The direct electrochemistry of epinephrine (EP) on a modified carbon paste electrode (CPE) was described. The electrode was modified with Zinc oxide (ZnO) nanoparticles and 1,3-dipropylimidazolium bromide as a binder. The oxidation peak potential of EP at the surface of the ionic liquid ZnO nanoparticle CPE (IL/ZnO/NP/CPE) appeared at 350mV, which was about 80mV lower than the oxidation peak potential at the surface of the traditional carbon CPE under a similar condition. On other hand, the oxidation peak current was increased for about three times at the surface of IL/ZnO/NP/CPE compared to CPE. The linear response range and detection limit were found to be 0.09-800molL(-1) and 0.06molL(-1), respectively. Other physiological species did not interfere in the determination of EP at the surface of the proposed sensor in the optimum condition. The proposed sensor was successfully applied for the determination of EP in real samples.

引用

页码：704 / 714

页数：11

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