Paper Information

Journal:   JOURNAL OF APPLIED CHEMISTRY   FALL 2016 , Volume 11 , Number 40; Page(s) 9 To 22.
 
Paper: 

ELECTROCATALYTIC DETERMINATION OF CAPTOPRIL USING NIO NANOPARTICLE/ACETYLFERROCENE MODIFIED ELECTRODE IN BIOLOGICAL AND PHARMACEUTICAL SAMPLES

 
 
Author(s):  ARABALI V.*
 
* 
 
Abstract: 

The electrocatalytic oxidation of captopril (CAP) has been studied by acetylferrocene (AF) modified NiO/NPs carbon paste electrode (AF/NiO/NPs/CPE). Cyclic voltammetry (CV), square wave voltammetry (SWV) and chronoamperometry were used to investigate the suitability of AF as a mediator for the electrocatalytic oxidation of CAP in aqueous solution. The catalytic reaction rate constant, kh was calculated (2.539×103 M-1 s-1) using chronoamperometry. The square wave voltammetric (SWV) peak currents of the electrode increased linearly with the corresponding CAP concentration in the range of 0.3-450 mM with a detection limit of 0.09 mM. The proposed sensor was used for determination of captopril in tablet and urine samples.

 
Keyword(s): CAPTOPRIL DETERMINATION, NIO NANOPARTICLES, SENSOR, MODIFIED CARBON PASTE ELECTRODE
 
References: 
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