New Strategy for Determination of Levodopa using Carbon Paste Electrode Modified with SiO2@Fe3O4/GR Nanocomposite, Ionic Liquid and 2-(ferrocenylethynyl)fluoren-9-one

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Forooghi Mohammad Mehdi; TAJIK SOMAYEH; BEITOLLAHI HADI

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Journal Paper

Paper Information

Journal: ANALYTICAL & BIOANALYTICAL ELECTROCHEMISTRY Year:2017 | Volume:9 | Issue:5 Page(s): 535-545

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Title

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(s)

Forooghi Mohammad Mehdi | TAJIK SOMAYEH | BEITOLLAHI HADI | Issue Writer Certificate

Keywords

Levodopa

SiO2@Fe3O4/GR nanocomposite

Ionic liquid

2-(ferrocenylethynyl)fluoren-9-one

Carbon paste electrode

Voltammetry

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 μ M 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.

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