A Determination Method of Dopamine or Epinephrine by Conducting Polymers : The Electrochemical Impedance Spectroscopy

Year 2016, Volume: 1 Issue: 2, 89 - 106, 09.08.2016

Hacer Dolas , Burcu Sayinli A.sezai Sarac

https://doi.org/10.30931/jetas.292636

Cited By: 1

Abstract

In this study, it was reported that the preparation
and characterization of capacitive sensor based on conducting polymer for
detection of dopamine and/or epinephrine by impedimetric method,
electrochemical impedance spectroscopy. Pt electrodes coated with poly(Cz) and
poly(In) in different electrolyte solution by electropolymerization. NaClO4-ACN
electrolyte solution was selected as suitable electrolyte solution, due to high
capacitive behavior. The usage of EIS technique for the determination of DA or
EP in presence of AA was investigated. For this reason, the measurement EIS of
prepared polymer coated electrodes in suitable conditions was performed by
immersed in different concentrations (from 10^-9M to 10^-6M)
of DA or EP in presence of 10^-4 M of AA at pH 7. It was found that
Poly(Cz) coated electrode was a more convenient biosensor for determination of
EP by EIS method than Poly(In) and for DA determination. Also, the EIS method
was able to use as the readout of Poly(Cz) coated electrode as a biosensor for
the determination of EP.   

Keywords

Electro polymerization, Determination, Dopamine, Epinephrine and Impedance .

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