Title of article
Poly (phenosafranine)/SAOS Modified Sensor for the Determination of Dopamine and Uric Acid
Author/Authors
Sunil Kumar Naik, andreborekaval Swamy Naik Department of P. G. Studies and Research in Industrial Chemistry - Kuvempu University , Kumara Swamy, Bahaddurghatta Eshwaraswamy Department of P. G. Studies and Research in Industrial Chemistry - Kuvempu University
Pages
15
From page
424
To page
438
Abstract
The phenosafranine (PS+) and sodium alpha olefin sulphonate (SAOS) used as the modifiers for the modification of bare carbon paste electrode (BCPE). Electropolymerization and immobilization technique has been employed for the modification of carbon paste electrode to get poly (phenosafranine)/SAOS/MCPE. The electrocatalytic behaviour of the modified electrode was investigated by voltammetric techniques. The modified electrode exhibits excellent electrocatalytic activity towards the determination of dopamine (DA) and uric acid (UA) in presence of 0.2 M phosphate buffer solution (PBS) at pH 7.4 with the scan rate of 50 mVs-1. The various parameters like effects of scan rate, concentration and pH variation was studied and the overall electrode process was found to be adsorption-controlled at poly (phenosafranine)/SAOS/MCPE. Both dopamine and uric acid exhibit good detection limits at modified electrode (4.43 μM and 4.18 μM respectively). Hence, the proposed sensor shows good sensitivity towards the determination of DA and UA individually and simultaneously.
Keywords
Dopamine , Uric acid , Poly (phenosafranine) , Sodium alpha olefin sulphonate , Modified carbon paste electrode , Cyclic voltammetry
Journal title
Astroparticle Physics
Serial Year
2017
Record number
2418773
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