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Bestimmung Kleinster Radium-226 Konzentrationen im Wasser

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Abstract

A sensitive technique is described, which permits, without chemical treatment, detection of radium (226Ra) in water in concentrations as low as 0.01 pCi·1−1. The determination is based on the emanation of radium daughter radon (222Rn) after it has achieved the radioactive equilibrium; it is then counted in a scintillation chamber. This procedure was applied to water samples from public water supplies in Hessia, Germany, for routine measurements. The radium concentration of 205 samples show log-normal distribution with a mean value of 0.11 pCi·1−1 and a geometric standard deviation of 2.6. Significantly higher results, between 0.12 and 14.6 pCi·1−1, were obtained for several samples of commercially available mineral water.

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Author notes

  1. J. Porstendörfer

    Present address: Zentrales Isotopenlabor der Universität Göttingen, Burckhardtstr. 2, D-5400, Göttingen

Authors and Affiliations

  1. Strahlenzentrum der Justus-Liebig-Universität Giessen, Leihgesterner Weg 217, D-6300, Giessen, (BRD)

    A. Wicke & J. Porstendörfer

Authors
  1. A. Wicke
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  2. J. Porstendörfer
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Herrn Prof. Dr. A. SCHRAUB zum 70. Geburtstag gewidmet.

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Wicke, A., Porstendörfer, J. Bestimmung Kleinster Radium-226 Konzentrationen im Wasser. J. Radioanal. Chem. 56, 105–112 (1980). https://doi.org/10.1007/BF02516942

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  • DOI: https://doi.org/10.1007/BF02516942

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