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Kinetic spectrophotometric method for the determination of oxalic acid by its catalytic effect on the oxidation of safranine by dichromate

Authors: Ali A Ensafi, S Abbasi, B Rezaei
Publication date: 2001/8/31
Journal name: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Volume: 57
Pages: 1833-1838
Publisher: Elsevier
 
A new catalytic kinetic spectrophotometric method for the determination of oxalic acid has
been described based on its catalytic effect on the redox reaction between safranine and
dichromate in dilute sulfuric acid media. The reaction is monitored photometrically by
measuring the decrease in absorbance of safranine at the maximum wavelength of 530 nm.
Under the optimum conditions, a calibration graph from 0.10 to 10.00 μg ml− 1 of oxalic acid
with a detection limit of 0.08 μg ml− 1 was obtained. The relative standard deviation (RSD) ...

 

Journal Papers
Month/Season: 
August
Year: 
2001

تحت نظارت وف ایرانی

Kinetic spectrophotometric method for the determination of oxalic acid by its catalytic effect on the oxidation of safranine by dichromate | Prof. Ali A. Ensafi

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تحت نظارت وف ایرانی