Electrochemical Detection Of Hydrazine Using Ruthenium bis(1,10- Phenanthroline)(4-Methyl-4’vinyl-2,2’-Bipyridine) Polymer Films In Flow Injection Analysis

Brown KL

Published on: 2021-12-12

Abstract

Cyclic voltammetry was used to electropolymerize ruthenium bis(1,10-phenanthroline)(4-methyl-4’vinyl-2,2’-bipyridine) onto glassy carbon electrodes to prepare multi-layered polymer films. These films were characterized in the presence of hydrazine and found to be redox mediators for the oxidation of hydrazine in aqueous environments. The polymer films were electrochemically active after repetitive electrochemical stimulation. Afterwards, the polymer films were incorporated into an automated continuous flow injection analysis system to determine the concentration of hydrazine in drinking water. Using the flow injection analysis system, a linear calibration curve response for hydrazine was obtained in the range 0.0010 mol. L^-1- 0.050 mol. L^-1.