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Flow-injection spectrophotometric determination of periodate and iodate by their reaction with pyrogallol red in acidic media
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 ...
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 ...
Journal Papers
Month/Season:
November
Year:
2002