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Flow Injection Analysis of Iodate Reduction on PEDOT Modified Electrode

✍ Scribed by A. Balamurugan; Shen-Ming Chen

Book ID
102831253
Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
572 KB
Volume
20
Category
Article
ISSN
1040-0397

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✦ Synopsis

Abstract

Poly‐(3,4‐ethylenedioxythiophene) (PEDOT) films were electrodeposited by cyclic voltammetry on glassy carbon electrode at different anodic potentials in the range of 1.0–1.5β€…V (Ag/AgCl) and its electrocatalytic properties towards reduction of iodate were reported. The effect of the pH of the solution on the response of PEDOT electrode towards iodate also studied. The modified electrode was employed successfully as an amperometric sensor for iodate in a flow injection apparatus. The repeatability of the method for 14 injections of a ΞΌM iodate solution was 7%. Interference from other oxidant anions such as nitrate was not noticeable, whereas bromate, chlorate and nitrite interfere at slight levels.

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