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[en] The paper demonstrates the effort made by the navy health administration (Diretoria de Saude da Marinha) to care the victims from Goiania, with an initial option to import immediately the product 'Radiogardase' (Azul da Prussia) followed by the development of a research to get an appropriate technology to make the pharmaco in our environment. The author describes all the means and resources that were available to the military pharmacists commissioned in the Central Navy Hospital (HCM) till the final obtention of the product, which in the appearance of paste obtained a favorable Instituto de Radioprotecao e Dosimetria, Report what proved the researchers success. He finishes mentioning in details the essential elements to manufacture it in a national level. (author)
[en] Results are presented which show that there is no P H dependence of the carbonate radical reactivity toward SCN-, I-, and Fe(CN)64- above P H 8.5. It is demonstrated that observations in the literature on these reactions which have been interpreted to show a pKa of 9.5 for the carbonate radical, in disagreement with other reports that the radical is not protonated in this P H region, can be explained by the medium effects. It is also shown that previous studies of the reaction between carbonate radical and thiocyanate are in error, and the mechanism of this reaction is elucidated.
[en] Prussian blue was used to enhance the elimination of 137Cs from 46 individuals contaminated in an accident in Goiania, Brazil, in 1987. PB dosages administered to the victims varied from 1 to 3 g.d-1 for children and from 3 to 10 g.d-1 for adolescents and adults. To complement human data in the evaluation of the effectiveness of PB and its relation to age, a 41 day study was conducted using immature (4.7 months old), young adult (2.4 years old) and aged (13.5 years old) male beagle dogs. The mean biological half-times for the Goiania people under PB treatment were 24 ± 3 days, 30 ± 12 days and 25 ± 11 days, for children, adolescents and adults, respectively. The mean reductions of half-times were 43%, 46% and 69%, respectively. The effect of PB was shown to be independent of age and the administered dose. Similar results were found in dogs: the mean biological half-times related to the second component of the equation were 11, 15 and 13 days for the immature, young adult and aged dogs, respectively, indicating a reduction of the clearance half-times of 45%, 45% and 63%. The experiment in dogs has shown that when the PB is administered immediately after caesium intake, its effectiveness is greater in immature than in aged dogs. The percentages of the initial body burden remaining 41 days after caesium intake were 4%, 12% and 8% for the immature, young adult and aged dogs, respectively. This age-related effect correlates with the increased fraction of 137Cs eliminated with the fast clearance half-time, and was greater in immature than in aged dogs. (author)
[en] Present work is devoted to rubidium sorption on the ferrocyanide of ammonium regeneration solutions. The selective synthesized sorbent on the basis of copper ferrocyanide was used. It is shown that isotherm of rubidium sorption from regeneration solution has a linear character. Calculated ratio of rubidium distribution is 2·102 ml/g.
[en] Spectroelectrochemical sensing based on multimode selectivity simultaneously achievable in a single device. 11. Design and evaluation of a small portable sensor for the determination of ferrocyanide in Hanford waste samples
[en] Selective recovery of the guest-framework interactions for H2 adsorbed in a nanoporous Prussian Blue analogue, through differential X-ray and neutron pair distribution function analysis at ca. 77 K, suggests that the H2 molecule is disordered about a single position at the centre of the pore, (1/4, 1/4, 1/4), without binding at accessible MnII sites
[en] The group of ferrocyanides was tested as a Cesium binding antidotes in laboratory and in domestic animals during and after the atmospheric atomic bomb tests. One of them, featuring an extremely high efficiency in Cesium binding and excretion, Ammonium-Ferric(III)-Cyanoferrate(II) was investigated with regard to its group chemistry, crystallographic structure and mode of action. Additional in vivo tests and practical applications are briefly discussed. 12 refs., 2 figs., 1 tabs. (qui)