Development of a simple spectrophotometric method to estimate uranium concentration in LiCl–KCl matrix

  • Satendra Kumar
  • S. Maji
  • K. Sundararajan
  • K. SankaranEmail author


A fast, precise and simple spectrophotometric method was developed for the estimation of uranium in LiCl–KCl salt matrix using phosphoric acid as a complexing agent. The 421 nm absorbance peak of uranium was found to be spectral interference free and area of this peak was used for the quantitative analysis. Linearity over 100–7000 ppm with a detection limit of 25 ppm of uranium in 10% LiCl–KCl matrix was obtained by this method. The present method was successfully applied for the quantitative estimation of uranium in synthetic salt mixtures and the results were found to be more accurate than the values measured by ICP-OES.


Spectrophotometer Uranium LiCl–KCl Phosphoric acid Quantification 



The authors gratefully acknowledge the help of Mrs. S. Annapoorani, Materials Chemistry Division, IGCAR for ICP-OES analysis.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

10967_2019_6471_MOESM1_ESM.doc (54 kb)
Supplementary material 1 (DOC 53 kb)


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  • Satendra Kumar
    • 1
  • S. Maji
    • 1
  • K. Sundararajan
    • 1
    • 2
  • K. Sankaran
    • 1
    • 2
    Email author
  1. 1.Materials Chemistry Division, Materials Chemistry and Metal Fuel Cycle GroupIndira Gandhi Centre for Atomic ResearchKalpakkamIndia
  2. 2.Homi Bhabha National InstituteIndira Gandhi Centre for Atomic ResearchKalpakkamIndia

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