S. Shahraki, M. Masrournia, H. Karimi-Maleh
Mar 3, 2021
Citations
0
Influential Citations
3
Citations
Journal
Current Analytical Chemistry
Abstract
Catecholamines are a large group of pharmacological and biological compounds that are widely used in biological systems. These compounds are prepared both naturally and synthetically with many key roles in human body and its activities. Therefore, many of researchers focused on identification and determination of catecholamines in biological samples. MgO/SWCNTs were synthesized through chemical precipitation method. In addition, cyclic voltammetry, differential pulse voltammetry and chronoamperometric methods were used for electro-oxidation reaction study of epinine at surface of modified electrode. Carbon paste electrode (CPE) modified with MgO/SWCNTs nanocomposite and 1-butyl-3-methylimidazolium methanesulfonate (BMMS) was used as an electrochemical sensor for determiantion of epinine. Results showed a linear dynamic range of 5.0 nM-250 µM with a detection limit of 0.1 nM for epinine determination using MgO/SWCNTs/BMMS/CPE as a sensor. In the present study, a highly sensitive electrochemical sensor was designed and fabricated as an analytical tool for determination of epinine. MgO/SWCNTs/BMMS/CPE was successfully used for determination of epinine in water and dextrose saline with an acceptable recovery range of 98.7%-102.72%.