Authors: Ali A Ensafi, S Zakeri

Publication date: 1999/1/1

Volume: 32

Pages: 1643-1652

Publisher: Taylor & Francis Group

ABSTRACT A simple and selective photometric procedure was developed for the micro-
determination of periodate in aqueous media. The method is based on the reaction of
periodate with Gallocyanine at pH= 4.8. The reaction was monitored photometrically by
measuring the absorbance of the reaction mixture at 620 nm. The effects of reagent
concentration, temperature and influence of other species for the determinations of
periodate were investigated. Periodate can be determined in the range of 0.02-2.20 μg/ml, ...