Impurities of 99mTc-generators

Eur J Nucl Med. 1983;8(1):26-9. doi: 10.1007/BF00263511.


The impurities present after use in 99Mo- 99mTc-generators produced by four different manufacturers were investigated by means of the energy spectrum and half-life measurements. The generators produced with fission contained only a few impurities, and the half-lives of their nuclides were relatively short. The only generator manufactured using neutron bombardment contained several nuclides whose half-lives were in a range of a few months, but also a 60Co nuclide whose long half-life may give rise to difficulties in destroying the generator.

MeSH terms

  • Humans
  • Radionuclide Generators*
  • Technetium / chemical synthesis*
  • Technetium / isolation & purification
  • Waste Products


  • Waste Products
  • Technetium