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Ali Babaei

Ali Babaei

Academic rank: Professor
ORCID: https://orcid.org/0000-0001-5442-8123
Education: PhD.
ScopusId: 56496577600
Faculty: Science
Address: Arak University
Phone:

Research

Title
Nanomolar simultaneous determination of levodopa and melatonin at a new cobalt hydroxide nanoparticles and multi-walled carbon nanotubes composite modified carbon ionic liquid electrode
Type
JournalPaper
Keywords
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Year
2013
Journal Sensors and Actuators B: Chemical
DOI
Researchers Ali Babaei ، Ali Reza Taheri ، Iman Khani Farahani

Abstract

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 μM, with the detection limits of 0.075 and 0.004 μM, respectively. The proposed method was successfully applied to determinations of these compounds in some pharmaceutical and human urine samples.