INAA Applied to Halogen (Br and I) Stability in Long-Term Storage of Lyophilized Biological Materials

  • V. Zaichick
  • S. Zaichick


Instrumental neutron activation analysis (INAA) was used to determine the Br and I concentration in the same ten lyophilized and homogenized human thyroid samples prior and after a 20-year storage at room temperature. It was found that long-term storage had no effect on the iodine content. At the same time, the bromine content was about 2-fold lower (p<0.01). It was assumed that possible losses of other halogens can occur under long-term storage of lyophilized biological materials at room temperature.


Physical Chemistry Inorganic Chemistry Iodine Activation Analysis Bromine 
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Copyright information

© Akadémiai Kradó, Budapest 2000

Authors and Affiliations

  • V. Zaichick
    • 1
  • S. Zaichick
    • 2
  1. 1.Medical Radiological Research CentreObninskRussia
  2. 2.Russian State Medical UniversityMoscowRussia

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