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Determination of rare earths in silicate rocks by epithermal neutron activation and a simple group separation

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Abstract

The determination of nine rare earth elements in rock samples by epithermal neutron activation, followed by a simple group-separation procedure and Ge(Li) γ-ray spectrometry, is described. This method is found to be advantageous for the determination of Nd, Gd, Ho, Er and Lu by means of the short-lived nuclides149Nd,159Gd,166Ho,171Er and176mLu. Precision for La, Sm and Eu is similar to that of thermal neutron activation, that for Dy is worse. Samples of the standard rocks, basalt BCR-1 and granite G-2, were analyzed by this procedure and the results obtained are compared with previously reported data.

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Authors and Affiliations

  1. Mineralogical-Geological Museum, University of Oslo, Norway

    A. O. Brunfelt

  2. Isotope Laboratories, Institutt for Atomenergi, Kjeller, Norway

    E. Steinnes

Authors
  1. A. O. Brunfelt
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  2. E. Steinnes
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Brunfelt, A.O., Steinnes, E. Determination of rare earths in silicate rocks by epithermal neutron activation and a simple group separation. J. Radioanal. Chem. 13, 11–20 (1973). https://doi.org/10.1007/BF02514104

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  • DOI: https://doi.org/10.1007/BF02514104

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