Anodic Investigation and Determination of N-methyl Pyrrole

Abstract

In the present research, the anodic oxidation of N-methyl pyrrole (NMP) by CV method in aqueous solution and different pH on platinum and glassy carbon electrodes have been studied. The rate of anodic oxidation of NMP in phosphate buffer (pH = 6.8) at Pt electrode is higher than in acidic or alkaline media and the increase of scan rate in this pH increases the peak current. The CV method results show that, when anionic species such as ferricyanide are present in acid solution, the polymerization rate of NMP increases considerably. The results by controlled potential coulometry (E_a = 1.1 V) show that the oxidation of NMP in acidic and neutral media gives up one electron per one molecule of monomer. The optimum condition for the determination of NMP by DPV is also determined.