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Sequential analysis methodology for 210Po and uranium analysis by extractive liquid scintillation spectrometry

  • Vandana PulhaniEmail author
  • Priyanka J. Reddy
  • Moushumi Chaudhury
  • R. M. Tripathi
Article
  • 17 Downloads

Abstract

A methodology for separation and purification of 210Po from uranium, thorium and daughters has been studied. Solvent extraction coupled with liquid scintillation analysis using HDEHP (di-(2-ethylhexyl) phosphoric acid) and TOPO (trioctylphosphine oxide) in toluene as extractive scintillator was optimized. About 95% of 210Po was extracted in the organic phase of TOPO as an extracting agent from an aqueous solution in 1 M HCl, compared to 1.6% extraction by HDEHP. The methodology was validated with uranium ore tailing sample, IAEA-385 sediment and IAEA-447 Moss-soil reference materials for application to environmental samples. A minimum detectable activity of 118 mBq kg−1 was achieved.

Keywords

210Po TOPO HDEHP Liquid scintillation spectrometry Solvent extraction 

Notes

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Health Physics DivisionBhabha Atomic Research CentreTrombayIndia
  2. 2.Radiation Safety Systems DivisionBhabha Atomic Research CentreTrombayIndia

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