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Journal of Radioanalytical Chemistry

, Volume 37, Issue 1, pp 155–168 | Cite as

Determination of lithium by instrumental neutron activation analysis

  • K. Heydorn
  • P. Z. Skanborg
  • R. Gwozdz
  • J. O. Schmidt
  • M. E. Wacks
Fundamental Contributions, Technical Development

Abstract

The fast transfer system in the DR 2 reactor for irradiation at a thermal neutron flux density of 1013 n·cm−2·sec−1 was used for the determination of lithium by the7Li(n, γ)8Li reaction. β-counting with a large perspex Cerenkov detector begun at 0.3 s after the end of irradiation, and multi-scaler data was accumulated in 300 channels at 0.1 s per channel. With a suitable choice of discrimination level only16N and background interfere, and the 0.84 s half-life of8Li was resolved by the method of weighted least squares. Results are presented for 36 international geochemical reference materials, and for a few biological samples, including BOWEN's kale and the NBS Standard Reference Material 1571 Orchard Leaves.

Keywords

Instrumental Neutron Activation Analysis Irradiation Position Decision Limit Transport Tube Counting Position 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Akadémiai Kiadó 1977

Authors and Affiliations

  • K. Heydorn
    • 1
  • P. Z. Skanborg
    • 1
  • R. Gwozdz
    • 2
  • J. O. Schmidt
    • 2
  • M. E. Wacks
    • 3
  1. 1.Research Establishment RisøRoskildeDenmark
  2. 2.Institute for PetrologyCopenhagenDenmark
  3. 3.Department of Nuclear EngineeringUniversity of ArizonaTucsonUSA

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