MOSSBAUER AND POSITRON-ANNIHILATION STUDIES OF MICROSTRUCTURAL PECULIARITIES OF IRON-DEXTRAN COMPLEXES

The microstructural peculiarities of pharmaceutically important iron-d extran complexes were studied by Mossbauer and positron annihilation t echniques. The results of Mossbauer spectroscopy showed variations of the iron cores in iron-dextran complexes containing different forms of FeOOH and different electronic and magnetic states of iron. The resul ts of angular correlations of annihilation radiation and positron life -time spectroscopies showed microstructural variations of the dextran shell of the iron-dextran complexes.