Spectrophotometric Determination of Uranium without solvent extraction in Geomaterials using Arsenazo-III in presence of EDTA

Authors

  • Satya Prakash  Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, West Block-VII, R.K.Puram, New Delhi, India
  • Vijay Kumar  Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, West Block-VII, R.K.Puram, New Delhi, India
  • Smeer Durani  Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, West Block-VII, R.K.Puram, New Delhi, India
  • S. Thangavel  Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, West Block-VII, R.K.Puram, New Delhi, India

Keywords:

Uranium, Arsenazo-III, and Stability of Complex

Abstract

A sensitive and selective spectrophotometric method for the determination of uranium ranging from 100µg to 4000µg U3O8/g of geomaterials (more than 4000µg U3O8/g of geo- materials is also possible by sub-dilutions), using disodium salt of ethylene diamine tetra-acetic acid (EDTA) and colour development with 2,7-bis(2,2-arseno phenyl azo) 1,8-dihydroxy naphthalene-3,6-disulphonic acid (Arsenazo-III) in phosphoric acid medium at λmax~642 nm was developed. Method is basically direct determination of uranium in coloured solution and it does not require solvent extraction for the removal of interferences, however, stoichiometry of the reagents solution is to be followed as per the optimised conditions.

References

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International Journal of Scientific Research in Chemistry

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Published

2018-11-30

Issue

Volume 3, Issue 5, November-December-2018

Section

Research Articles

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How to Cite

[1]
Satya Prakash, Vijay Kumar, Smeer Durani, S. Thangavel, " Spectrophotometric Determination of Uranium without solvent extraction in Geomaterials using Arsenazo-III in presence of EDTA , International Journal of Scientific Research in Chemistry(IJSRCH), ISSN : 2456-8457, Volume 3, Issue 5, pp.35-38, November-December-2018.