期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 183, 期 -, 页码 265-272出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2013.03.101
关键词
Levodopa; Melatonin; Carbon ionic liquid electrode; Modified electrode; Electrochemical sensor; Cobalt hydroxide nanoparticles
资金
- Arak University
A novel modified carbon ionic liquid electrode (CILE) is prepared as an electrochemical sensor for simultaneous determination of levodopa (L-Dopa) and melatonin (Mel). The experimental results suggest that a carbon ionic liquid electrode modified with multi-walled carbon nanotubes and cobalt hydroxide nanoparticles accelerates the electron transfer reactions of L-Dopa and Mel. The fabricated sensor revealed some advantages such as convenient preparation, good stability and high sensitivity. The DPV data in 0.1 M phosphate buffer solution (PBS) (pH 7.5) allowed a method to be developed for the determination of L-Dopa and Mel concentrations in the ranges 0.1-300 and 0.01-50 mu M, with the detection limits of 0.075 and 0.004 mu M, respectively. The proposed method was successfully applied to determinations of these compounds in some pharmaceutical and human urine samples. (c) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据