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Determination of226Ra and230Th

An improved procedure

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Abstract

Separation and isolation of radium and thorium by successive coprecipitation on BaSO4 is usually both fast and reliable, but suffer from both cross contamination (of Ra by Th) and low recovery (of Th) in the presence of some common components of environmental samples. An alternative method, free from these problems, involves the use of La3+ as holdback carrier for Th4+ during precipitation of Ba(Ra)SO4 followed by carrying of Th4+ on LaF3. Yields are found to be high in several cases which were troublesome by the other method.

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Authors and Affiliations

  1. Department of Chemistry, Carleton University, KIS 5B6, Ottawa, Ontario, (Canada)

    I. G. de Jong & D. R. Wiles

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  1. I. G. de Jong
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  2. D. R. Wiles
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de Jong, I.G., Wiles, D.R. Determination of226Ra and230Th. Journal of Radioanalytical and Nuclear Chemistry, Articles 82, 309–318 (1984). https://doi.org/10.1007/BF02037053

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  • DOI: https://doi.org/10.1007/BF02037053

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