Title of article :
Electrochemiluminescence Analysis of Levodopa using Luminol at MWCNT-Modified Electrode
Author/Authors :
Mirzanasiri, Nooshin Center of Excellence in Electrochemistry - School of Chemistry - College of Science, University of Tehran , Hosseini, Morteza Department of Life Science Engineering - Faculty of New Sciences & Technologies - University of Tehran , Larijani, Bagher Endocrinology & Metabolism Research Center - Endocrinology & Metabolism Molecular-Cellular Sciences Institute - Tehran University of Medical Sciences , Rashedi, Hamid Department of Chemical Engineering - Faculty of Engineering - University of Tehran
Abstract :
Levedopa was sensitively determined based on electrogenerated chemiluminescence (ECL) mechanism through enhancing the weak ECL of electro-oxidized luminal in presence of levodopa, on a multiwall carbon nanotubes (MWCNTs)-modified electrode. Under optimal conditions, the relative ECL emission/levodopa concentration plot was found to be linear from 1.0×10-9 to 1.7×10-7 M and a detection limit of 6.7×10-10 M was recorded. The modified electrode was found applicable to the analysis of levodopa in urine samples.
Keywords :
Multiwalled carbon nanotube , Electrochemiluminescense , Gold electrode , Luminol , Levodopa
Journal title :
Astroparticle Physics
