Title of article :
New Strategy for Determination of Levodopa using Carbon Paste Electrode Modified with SiO2@Fe3O4/GR Nanocomposite, Ionic Liquid and 2-(ferrocenylethynyl)fluoren-9-one
Author/Authors :
Forooghi, Mohammad Mehdi Department of Chemistry - Faculty of Sciences - Islamic Azad University Kerman Branch , Tajik, Somayeh Environment Department - Institute of Science and High Technology and Environmental Sciences , beitollahi, Hadi Environment Department - Institute of Science and High Technology and Environmental Sciences
Abstract :
In this study, SiO2@Fe3O4/GR nanocomposite, ionic liguid and 2-(ferrocenylethynyl)fluoren-9-one (2FE) modified carbon paste electrode (SiO2@Fe3O4/GR/2FE/IL/CPE) was used for the determination of levodopa. The electrochemical behavior of levodopa was investigated using cyclic voltammetry (CV), chronoamperometry (CHA) and differential pulse voltammetry (DPV) techniques. Due to the fine characteristics of modified electrode, a good linear relationship between the anodic peak current and levodopa concentration in the range 0.1–500.0 μM was observed. The detection limit (3σ) obtained by DPV was 6.0×10-8 M (S/N=3). Here, a new sensor is introduced that is simple, rapid, sensitive, selective and cost-effective for quantitation of levodopa in real samples.
Keywords :
Levodopa , SiO2@Fe3O4/GR nanocomposite , Ionic liquid , 2-(ferrocenylethynyl)fluoren-9-one , Carbon paste electrode , Voltammetry
Journal title :
Astroparticle Physics
