Use of multiphoton ionization of molecules for the determination of neptunium traces in solution

  • Yu. P. Novikov
  • A. G. Marunkov
  • S. I. Sin'kov
  • N. V. Chekalin
  • B. F. Myasoedov
Article
  • 23 Downloads

Abstract

The possibility of detecting trace amounts of neptunium atoms and molecular compounds by laser resonance ionization spectroscopy has been investigated in acetylene-air and acetylene-nitrous oxide flames. Experimentally evaluated atomization coefficients of neptunium in the process of thermal dissociation in flames (10−4% for C2H2-air and 10−2% for C2H2−N2O) do not allow to use atomic ionization signal for determination of neptunium microamounts in solutions. High yield multiphoton ionization of NpO molecule has been realized in fuel rich C2H2−N2O flame. This pehnomenon has been used for determination of trace quantities of Np in solution. The detection limit was 2·10−9 g/ml.

Keywords

C2H2 Ionization Signal Atomic Ionization Laser Resonance Neptunium 

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References

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Copyright information

© Akadémiai Kiadó 1988

Authors and Affiliations

  • Yu. P. Novikov
    • 1
  • A. G. Marunkov
    • 1
  • S. I. Sin'kov
    • 1
  • N. V. Chekalin
    • 1
  • B. F. Myasoedov
    • 1
  1. 1.V. I. Vermadsky Institute of Geochemistry and Analytical Chemistry of USSR Academy of SciencesMoscowUSSR

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