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Fluorimetric determination of traces of uranium(VI) in brines and iron(III) oxides using separation on an activated silica gel column

Authors
Journal
Analytica Chimica Acta
0003-2670
Publisher
Elsevier
Publication Date
Volume
264
Issue
1
Identifiers
DOI: 10.1016/0003-2670(92)85304-o
Keywords
  • Flourimetry
  • Brines
  • Uranium
  • Waters

Abstract

Abstract A method for the determination of trace uranium levels in brines and waters with a high content of iron(III) based on the separation of uranium from a mixture of masking agents by sorption on an activated silica gel column was developed in connection with the Scintrex UA-3 uranium analyser. The detection limit of uranyl ions was 1.4 ng. This value can be achieved even with solutions containing 56 mg of iron, 480 mg of magnesium and/or 1000 mg of chloride. The relative standard deviation of the method is 5%. An analysis requires less than 20 min.

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