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Journal of Radioanalytical and Nuclear Chemistry

, Volume 138, Issue 2, pp 207–218 | Cite as

Determination of low-level90Sr in environmental materials: A novel approach to the classical method

  • R. Bojanowski
  • D. Knapinska-Skiba
Article

Abstract

A method was developed for the separation of strontium from large amounts of calcium which does not depend on fuming nitric acid. A sample in the form of mixed carbonates or oxides is stirred into concentrated nitric acid in the proportion 1∶7 w/v. Strontium forms insoluble nitrates while calcium remains in the solution. Two re-precipitation steps combined with an acetone wash yield a very pure strontium salt which is suitable for gravimetric determination of recovery. The method, devised originally for90Sr assay in sea water, can also be applied to solid samples which present analytical problems due to their high calcium content.

Keywords

Calcium Nitrate Acetone Nitric Acid Strontium 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Akadémiai Kiadó 1990

Authors and Affiliations

  • R. Bojanowski
    • 1
  • D. Knapinska-Skiba
    • 1
  1. 1.Institute of OceanologyPolish Academy of SciencesSopotPoland

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