Determination of trace elements in iron minerals by instrumental and radiochemical neutron activation analysis

Petre Makreski 1 , 1 , Radojko Jacimovic 2 , 2 , Vekoslava Stibilj 3 , 3 , Trajče Stafilov and Gligor Jovanovski 4 , 4
  • 1 Institute of Chemistry, Faculty of Science, Sts. Cyril and Methodius University, MK-1001 Skopje, Mazedonien
  • 2 Joef Stefan Institute, SI-1001 Ljubljana, Slowenien
  • 3 Joef Stefan Institute, SI-1001 Ljubljana, Slowenien
  • 4 Institute of Chemistry, Faculty of Science, Sts. Cyril and Methodius University, MK-1001 Skopje, Mazedonien

Abstract

The method for determination of major and trace elements in iron oxide [hematite (Fe2O3)] and sulfide [pyrite (FeS2) and chalcopyrite (CuFeS2)] minerals using the k0-method of neutron activation analysis in both forms: instrumental (k0-INAA) and radiochemical (k0-RNAA) was suggested. In order to avoid interferences from iron on the determination of elements present in trace levels, radiochemical separation was made. Determination of the investigated elements in the aqueous phase was performed by k0-RNAA after extraction of iron by isoamyl acetate (IAA) and diisopropyl ether (DIPE) from hydrochloric acid solution. The distribution of 35 elements in extraction systems (with intermediate/medium and long half-lived radionuclides) present in the studied minerals was investigated.

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Radiochimica Acta publishes original papers, review articles, and “rapid communications” (short articles of a more timely interest) on all chemical aspects of nuclear science and technology. The journal is geared toward scientists who are actively engaged in research work.

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