An amplified sensor based on improved carbon paste electrode with 1,3-Dipropylimidazolium Bromide and MgO/SWCNTs Nanocomposite for tradamol determination

被引：19
作者：
Hosseini, Firuzeh [1 ]
Ebrahimi, Mahmoud [1 ]
Karimi-Maleh, Hassan [2 ]
机构：
[1] Islamic Azad Univ, Mashhad Branch, Dept Chem, Mashhad, Iran
[2] Quchan Univ Technol, Dept Chem Engn, Lab Nanotechnol, Quchan, Iran
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2018年 / 13卷 / 05期
关键词：
Tramadol; MgO/SWCNTs nanocomposite; 1,3-dipropylimidazolium bromide; Electrochemical sensor; NANOSTRUCTURE VOLTAMMETRIC SENSOR; MOLECULARLY IMPRINTED POLYMER; TEMPERATURE IONIC LIQUID; ELECTROCHEMICAL SENSOR; ASCORBIC-ACID; FOOD SAMPLES; FOLIC-ACID; URIC-ACID; SELECTIVE DETERMINATION; PHARMACEUTICAL SAMPLES;
D O I：
10.20964/2018.05.12
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electrochemical behavior of tramadol at carbon paste electrode amplified with the 1,3-dipropylimidazolium bromide and MgO/SWCNTs nanocomposite (1,3-DI-Br/MgO/SWCNTs/CPE) has been studied in aqueous solutions. The oxidation of tramadol at the pH range of 6.0-9.0 has been investigated. At the optimum condition of pH 8.0, the tramadol shows an irreversible signal at 0.81 V. The scan rate investigation confirms a diffusion process for the electro-oxidation of tramadol at a surface of 1,3-DI-Br/MgO/SWCNTs/CPE. Square wave voltammetric investigation shows a linear relation between the tramadol current and concentration within the range of 0.05-280 mu M with a detection limit of 8.0 nM. The 1,3-DI-Br/MgO/SWCNTs/CPE has been applied to analyze the tramadol in injection and urine samples.
引用
收藏
页码：4923 / 4932
页数：10
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