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  • 1 Charles University Institute of Biophysics and Nuclear Medicine, The 1st Medical Faculty Prague ČSFR
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A very slow extraction of radiosodium with water from the ashed rabbit bone was observed (T=375 h). Thus, the ashing procedure does not facilitate the sodium release from the bone mineral. The mineral is even modified in such a way that sodium ions are then fixed more strongly than in the native bone (formed experiments with native bone yielded a two-exponential curve with T values of 4.36 and 167 h).