Application of energy dispersive X-ray fluorescence for the determination of metallic impurities in ThO2

  • V. Natarajan
  • B. Rajeswari
  • B. A. Dhawale
  • N. S. Hon
  • S. V. Godbole
  • V. K. Manchanda


Energy dispersive X-ray fluorescence (EDXRF) spectrometric methods have been developed for the determination of some common metallic impurities in ThO2 matrix. A series of ThO2 standards containing the analyte impurities in the range 10–100 (or 100–500) μg/g was prepared synthetically. The spectrometer conditions were optimized to obtain calibration plots for the various analytes. The accuracy and precision of the developed methodology for regular assay of ThO2 was evaluated by analyzing three synthetic samples. Further three secondary ThO2 standards were analyzed by EDRXF to check the developed methods. The determined concentrations of Ca, Cr, Fe, Ni and Cu were in good agreement with the certified values of the secondary standards.


Inductively Couple Plasma Mass Spectrometry Inductively Couple Plasma Atomic Emission Spectrometry Chemical Separation Synthetic Sample Metallic Impurity 
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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2009

Authors and Affiliations

  • V. Natarajan
    • 1
  • B. Rajeswari
    • 1
  • B. A. Dhawale
    • 1
  • N. S. Hon
    • 1
  • S. V. Godbole
    • 1
  • V. K. Manchanda
    • 1
  1. 1.Radiochemistry DivisionBhabha Atomic Research CentreTrombay, MumbaiIndia

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