Electrochemical Behavior and Voltammetric Determination of Diclofenac at a Multi-Walled Carbon Nanotube-Ionic Liquid Composite Modified Carbon Ceramic Electrode

被引：19
|
作者：
Razmi, Habib [1 ]
Sarhang-Zadeh, Kianoush [1 ]
Mohammad-Rezaei, Rahim [1 ]
机构：
[1] Azarbaijan Shahid Madani Univ, Electroanalyt Chem Res Lab, Fac Sci, Tabriz, Iran
来源：
ANALYTICAL LETTERS | 2013年 / 46卷 / 12期
关键词：
Carbon nanotube; Diclofenac; Ionic liquid; Modified electrode; CONTROLLED-RELEASE INDOMETHACIN; PYROLYTIC-GRAPHITE ELECTRODE; CONTROLLED CLINICAL-TRIAL; PHARMACEUTICAL FORMULATION; PASTE ELECTRODE; SODIUM; OXIDATION; CHROMATOGRAPHY; CYCLODEXTRIN; URINE;
D O I：
10.1080/00032719.2013.777919
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This work describes the electrochemical behavior of diclofenac on the surface of a carbonceramic electrode (CCE) modified with multi-walled carbon nanotubes (MWCNT) and an ionic liquid (IL) composite. The MWCNT-IL composite showed an enhancement effect in the electro-oxidation of diclofenac with respect to a bare carbon ceramic electrode. Based on the experimental outcomes, a possible mechanism for the electro-oxidation of diclofenac is proposed and discussed. Under the optimized experimental conditions, the MWCNT-IL CCE showed a linear response to diclofenac over the concentration range 50nM-20 mu M with a detection limit of 27nM. The developed diclofenac sensor showed good stability, sensitivity, and reproducibility in the measurement of diclofenac in human blood plasma samples.
引用
收藏
页码：1885 / 1896
页数：12
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