International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2572

Full Length Research Paper

Extracting 226Ra from sand filter samples using MnO2 impregnated resin and determination by sector field inductively coupled plasma mass spectrometry

Mohamed. A. Amr* and Saeed H. Al-Meer
Central Laboratories Unit, Office of Research, Qatar University, Doha Qatar, P.O. Box 2713.
Email: [email protected]

  •  Accepted: 23 March 2012
  •  Published: 30 April 2012

Abstract

 

An analytical procedure was proposed for the determination of 226Ra at ultratrace levels in sand filters using sector field inductively coupled plasma mass spectrometry (ICP-MS). Radium was pre-concentrated using an impregnated manganese dioxide filter and separated from strontium using Eichrom“Sr-resin.” Following the extraction chromatography, polyatomic ions of Pb and W were eliminated by optimizing the operation parameter of ICP-MS. The detection limit of 226Ra was found to be 0.9 fg ml-1(33 mBq kg-1). Underground water samples and sands of the filters were analyzed for226Ra. Furthermore, radium removal from sand filters was studied using inorganic acids.226Ra was measured in the precipitation of dissolved oxide layers from the sand filters.

 

Key words: 226Ra, ICP-MS, sand filter.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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