Abstract
The recovery of selenium75Se added as selenite to human blood and to mixed food, and the recovery of biologically incorporated75Se from different rat tissues were determined by using four mineralization methods. The recoveries of75Se after dry ashing /HNO3, Mg/NO3/2/ and after three wet digestion methods — 1. HNO3, HClO4 2. HNO3, HClO4, H2SO4 3. HNO3, HClO4, MgCl2 were as follows: 50–106%, 96–99%, 92–99% and 97–100%, resp. Losses of75Se in wet digestion /HNO3, HClO4/ were observed at the end of the procedure, when an excess of acids was evaporated. The addition of MgCl2 to the digestion mixture prevented the escape of75Se and thus permitted the total evaporation of the digest without any loss of selenium.
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Drábek, K., Kalousková, J. Comparison of recoveries of inogranic and organic incorporated75Se by four mineralization methods of biological material. Journal of Radioanalytical and Nuclear Chemistry Letters 119, 119–129 (1987). https://doi.org/10.1007/BF02169840
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DOI: https://doi.org/10.1007/BF02169840