Amperometric and constant-current potentiometric determinations of the Landolt effect

Abstract

An amperometric method with one platinum indicator electrode as well as the constant-current potentiometric method with one and two indicator electrodes were successfully applied to the Landolt effect determination by means of the hydrogen peroxide-iodideascorbic acid and bromate-bromide-ascorbic acid indicator reactions. The possibilities of application of these methods are illustrated by the determination of small amounts of iron(III), vanadium(V), and molybdenum(VI) with satisfactory accuracy and precision. © 1977.