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An application of the monostandard epithermal neutron activation technique for the analysis of domestic phosphate ores

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Abstract

The trace elements As, Co, Eu, Ga, La, Sb, Sc, Sm, U and W and the major constituents Fe and Na were determined in four domestic phosphate rocks by the monostandard epithermal neutron activation technique. Samples of ∼0.1 g were irradiated in the Egyptian 2 MW ERR-1 reactor under Cd cover, and the induced gamma activities measured after 6 h, 7 d and 8 w with a Hp Ge detector coupled to a computerized multichannel analyzer. Uranium has been used as a monostandard due to its relatively high resonance integral value (I0=274.6 b) and because it is one of the elements to be determined more accurately. The present data are compared with those obtained by instrumental neutron activation analysis (INAA) method performed at Institute of Radiochemistry, Karlsruhe. The observed discrepancies do not exceed 12% in average. The present method is a practical alternative for trace element analysis.

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Authors and Affiliations

  1. Central Laboratory for Instremental Analysis, Hot Laboratory Center, AEA, Cairo, (Egypt)

    R. Zaghloul

  2. Faculty of Science, El-Azhar University (Girls Branch), Cairo, (Egypt)

    W. H. El-Abbady & N. S. Ghoma

Authors
  1. R. Zaghloul
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  2. W. H. El-Abbady
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  3. N. S. Ghoma
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Zaghloul, R., El-Abbady, W.H. & Ghoma, N.S. An application of the monostandard epithermal neutron activation technique for the analysis of domestic phosphate ores. Journal of Radioanalytical and Nuclear Chemistry, Articles 116, 235–241 (1987). https://doi.org/10.1007/BF02035767

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  • DOI: https://doi.org/10.1007/BF02035767

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