Authors: Ali A Ensafi, M Chamjangali

Publication date: 2002/11/30

Journal name: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Volume: 58

Pages:: 2835-2839

Publisher: Elsevier

A simple and efficient flow-injection method was used with good results to determine
periodate and iodate in water. The method is based on the reaction of periodate or iodate
with pyrogallol red in sulfuric acid media. The reaction was monitored
spectrophotometrically by measuring the decrease in absorbance of pyrogallol red at 470
nm. The chemical and FIA variables were established using the univariate and simplex
optimization methods. The calibration curve was linear over the concentration ranges of ...