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Rahman Hosseinzadeh

Rahman Hosseinzadeh

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Faculty of Chemistry
Address: Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
Phone: 01135302356

Research

Title
Voltammetric Determination of Droxidopa in the Presence of Tryptophan Using a Nanostructured Base Electrochemical Sensor
Type
JournalPaper
Keywords
Droxidopa, Tryptophan, Ionic liquid, Carbon paste electrode, Cu-TiO2 nanocomposite, 2-(ferrocenylethynyl)fluoren-9-one
Year
2018
Journal Journal of Electrochemical Science and Technology
DOI
Researchers Halimeh Yaghoubian ، Shohreh Jahani ، Hadi Beitollahi ، Somayeh Tajik ، Rahman Hosseinzadeh ، Pourya Biparva

Abstract

A novel carbon paste electrode modified with Cu-TiO2 nanocomposite, 2-(ferrocenylethynyl)fluoren-9-one (2FF) and ionic liquid (IL) (2FF/Cu-TiO2/IL/CPE) was fabricated and employed to study the electrocatalytic oxidation of droxidopa, using cyclic voltammetry (CV), chronoamperometry (CHA) and differential pulse voltammetry (DPV) as diagnostic techniques. It has been found that the oxidation of droxidopa at the surface of modified electrode occurs at a potential of about 295 mV less positive than that of an unmodified CPE. DPV exhibits a linear dynamic range from 5.0 × 10-8 to 4.0 × 10-4 M and a detection limit of 30.0 nM for droxidopa. Finally this modified electrode was used for simultaneous determination of droxidopa and tryptophan. Also the 2FF/Cu-TiO2/IL/CPE shows excellent ability to determination of droxidopa and tryptophan in real samples.