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Simultaneous determination of zirconium and hafnium in standard rocks by neutron activation analysis

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Abstract

A sensitive analytical technique has been developed to determine zirconium and hafnium at the 1 ppm and 0.01 ppm levels, respectively, in natural silicate matrices. The technique is based on the use of a Ge(Li) detector for high-resolution γ-ray spectrometry following irradiation with thermal neutrons. Simultaneous separation of both elements is achieved by addition of only zirconium carrier and use of a strongly basic anion-exchange resin. Hafnium was shown to follow zirconium throughout the chemical procedures. The chemical yield of the separation procedure was determined for each sample by use of an automated fast-neutron activation analysis system, which obviated the need to convert the separated zirconium to a conventional gravimetric weighing form. The method has been applied to the analysis of a variety of standard rocks and related natural materials.

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Authors and Affiliations

  1. Department of Chemistry, University of Kentucky, 40506, Lexington, Kentucky, USA

    T. V. Rebagay & W. D. Ehmann

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  1. T. V. Rebagay
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  2. W. D. Ehmann
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Rebagay, T.V., Ehmann, W.D. Simultaneous determination of zirconium and hafnium in standard rocks by neutron activation analysis. J. Radioanal. Chem. 5, 51–60 (1970). https://doi.org/10.1007/BF02513699

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  • DOI: https://doi.org/10.1007/BF02513699

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