Journal of Radioanalytical Chemistry

, Volume 14, Issue 2, pp 295–316 | Cite as

Determination of trace impurities in tin by neutron activation analysis

III. Simultaneous determination of 15 elements
  • W. Maenhaut
  • F. Adams
  • J. Hoste


A method was developed for the determination of 15 trace elements in tin. High-purity tin samples (99.9999% and 99.999%) as well as tin of technical quality were analysed. Reactor neutron activation of the tin samples was followed by distillation of the matrix activities from a HBr−H2SO4 medium and Ge(Li) gamma-ray spectrometry of the distillation residue. The sensitivity of the method is generally high. For the high-purity samples the detection limits vary from 0.02 ppb (scandium) to 200 ppb (iron) for irradiation of 1 g of tin for 1 week at a thermal flux of 5·1012n·cm−2. ·sec−1. To decontaminate the surface of the tin samples, pre- and post-irradiation etching procedures were applied. The efficiency of these etching techniques was studied.


Versus Versus Versus Trace Impurity Distillation Residue Thetis Reactor Full Energy Peak Area 
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Copyright information

© Akadémiai Kiadó 1973

Authors and Affiliations

  • W. Maenhaut
    • 1
  • F. Adams
    • 1
  • J. Hoste
    • 1
  1. 1.Institute for Nuclear SciencesGhent UniversityGhent(Belgium)

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