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Rapid determination of tungsten in rocks using183mW

  • Thermal Neutron Activation and Radiochemistry
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Abstract

A rapid method has been developed for the determination of tungsten, especially in rocks. The reaction182W(n, γ)183mW (T=5.3 sec), with a thermal neutron capture cross-section of 0.5 b was used. The samples were irradiated in the fast pneumatic system of the FRM, which is described briefly. The low-energy γ-rays of the isomer183mW were measured by a high-resolving Ge(Li) detector. The sensitivity of the method is 0.1 mg tungsten with an accuracy of about 5%; the minimum concentration is 0.1–0.2% W in geological samples. The analysis time is 2 min per sample.

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Authors and Affiliations

  1. Institut für Radiochemie der Technischen Universität München, 8046, Garching bei München, (GFR)

    H. Zinner, R. Henkelmann & H. Stärk

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  1. H. Zinner
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  2. R. Henkelmann
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  3. H. Stärk
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Zinner, H., Henkelmann, R. & Stärk, H. Rapid determination of tungsten in rocks using183mW. J. Radioanal. Chem. 16, 31–38 (1973). https://doi.org/10.1007/BF02517849

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  • DOI: https://doi.org/10.1007/BF02517849

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