Halogen speciation in the rat thyroid: Simultaneous determination of bromine and iodine by short-term INAA |
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| Authors: | S Pavelka M Vobecký A Babický |
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| Institution: | (1) Department of Biochemistry, Faculty of Science, Masaryk University, 61137 Brno, Czech Republic;(2) Institute of Physiology, Academy of Sciences of the Czech Republic, v.v.i., 14220 Prague 4, Czech Republic;(3) Institute of Analytical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., 14220 Prague 4, Czech Republic |
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| Abstract: | The study describes a mode of non-destructive simultaneous determination of bromine and iodine concentrations, by reactor
instrumental neutron activation analysis (INAA) in the regime of short-term activation. Under the conditions of 1-minute activation
in the neutron flux of 8.0·1013 n·cm−2·s−1, it was possible to determine reliably as little as 5·10−8 g bromine and about 10−7 g iodine in matrices of a given type and of the mass of about 5 mg dry weight. We applied this method for the determination
of Br and I concentrations in the whole rat thyroid gland as well as for the halogen speciation in fractions separated from
this organ. |
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