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Environmental Effects of 223-Ra Radiopharmaceuticals
 Krmelová, Tereza ; Smrček, Stanislav (advisor) ; Podlipná, Radka (referee)
Title: Environmental Effects of 223 Ra Radiopharmaceuticals Author: Tereza Krmelová Branch: Environmental chemistry Type of thesis: Diploma thesis Advisor: Doc. Ing. Stanislav Smrček, CSc Abstract: In thesis was studied the possibility of extracting the nanoparticles of titanium dioxide or hydroxyapatite with bounded 223 Ra by root system of tested plant species Avena sativa and Zea mays as a model for phytoremediation technologies. The thesis obtains data to assess the potential of residues radioactivity and nanomaterials entering the food chain. There was also verified an experiment of 223 Ra phytoextraction, in the form of nitrate, in effects on addition of EDTA, which was conducted in Bachelor thesis. This experiment was repeated because of its results, which were inconsistent with generally described phytoextraction efficiency improvements after adding the complexing agents. In this work was primary studied translocation of radioactive material from the root to shoot. Experimentally was confirmed the extraction of nanoparticles with bounded 223 Ra and translocation into shoot. In the case of Avena sativa, capturing of nanoparticles hydroxyapatite with bounded 223 Ra was 53 % of which 88 % of activity was recovered in roots and 12 % in shoots. Capturing nanoparticles of titanium dioxide with bounded 223...
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