ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 44, Number 4
JKCSEZ 44(4)
August 20, 2000 

A new absorption spectrometric method for the determination of the Cr2O72- ionin acidic media has been developed. The new method is based on the oxidation-reduction reaction of the HCrO4- ion with H2O2 forming a deep blue CrO(O2)2 andis coupled with a technique of flow injection analysis(FIA). The new method providesa linear calibration curve which accurately follows the Beer's law overa wide rangeof the analyticalmost negligible except Cu.