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- Title
Development of <sup>77</sup>Ge/<sup>77</sup>As parent-daughter system for periodic removal of <sup>77</sup>As for environmental sanitation and biochemical purposes.
- Authors
Oláh, Zita; Szűcs, Zoltán; Varga, Zoltán; Dóczi, Rita
- Abstract
A simple method was developed for the separation of radioactive 77As from neutron irradiated natural GeO2 samples for environmental and biochemical studies. The method is based on the volatility of GeCl4. The GeCl4 was co-evaporated from the reaction mixture with an azeotropic mixture of HCl and water, and immediately condensed into a separate finger part of the special glass apparatus which was cooled by liquid nitrogen. By inverting the room temperature and the deep frozen parts of the glass equipment after three half-lives of the 77Ge the separation process can be repetitive, getting a special type of 77Ge/77As parent-daughter system. The radionuclidic purity of the remaining As fraction was found to be 99.95%. Its yield, however, drastically decreased in the second and subsequent separations.
- Subjects
GERMANIUM isotopes; SANITATION; BIOCHEMISTRY; SEPARATION (Technology); RADIONUCLIDIC purity
- Publication
Radiochimica Acta, 2015, Vol 103, Issue 12, p871
- ISSN
0033-8230
- Publication type
Article
- DOI
10.1515/ract-2015-2387