Fast gas-thermochromatographic separation of ruthenium neutron-deficient isotopes from silver chloride

Bayar, B.; Vocilka, I.; Zaitseva, N.G.; Novgorodov, A.F.

doi:10.1016/0022-1902(78)80452-7

Cited by 12 publications

(30 citation statements)

References 11 publications

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“…W was separated from the irradiated target by thermochromatography using moist air, Condensed onto the surface of a thermochromatographic column [21] and subsequently dissolved in 0.5 M HCl.…”

Section: Methodsmentioning

confidence: 99%

Sorption of Subgroup IV, V and VI Elements on Ion Exchangers from HCl/HF Solutions. Model Experiments for Chemical Studies of the Elements 105 and 106 in Aqueous Solution

et al. 1996

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The distribution coefficients of Zr, Hf, Nb, Ta, Mo, W, and Pa on cation and anion exchange resins from mixed HCl/HF solutions were determined in batch experiments by radiometric measurements. From solutions of 0.05 to 0.1 M HCl with 1.0 X10"' M HF a Separation of subgroup V and VI from subgroup IV Clements is possible on DOWEX 50X8. This system is proposed for the fast on-line Separation of the Clements 105 and 106. In column experiments with cation exchangers W can be separated from Mo. This opens the possibility to determine the chemical behaviour of element 106 in comparison to the lighter homologs. Differenccs in the Sorption behaviour of Ta, Nb and Pa on cation exchange resins from 0.1 M HCl/2.0 X10"" M HF Solution should allow a Statement as to which of these Clements, element 105 has the highest similarity.

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Section: Methodsmentioning

confidence: 99%

Sorption of Subgroup IV, V and VI Elements on Ion Exchangers from HCl/HF Solutions. Model Experiments for Chemical Studies of the Elements 105 and 106 in Aqueous Solution

et al. 1996

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“…Data on the vacuum TC of a number of elements in the metallic form as well as of their oxides and chlorides can be found in [76]. The prospects of the TC approach for the production of radionuclides for Pharmaceuticals are outlined in [56,57]. It should be emphasized that, to date, chlorides, oxides and the elemental state have been used in applications most frequently.…”

Section: Radiochemical Activation Analysismentioning

confidence: 99%

“…For instance, the bombardment of a Ni target served as a source of isotopes of Cr to Co which were separated in the stream of H 2 + HC1 [55]. A gold target processed in oxygen yielded isotopes of Re through Hg [56].…”

Section: Products Of Proton Induced Reactions For Nuclear Spectroscopmentioning

confidence: 99%

Thermochromatographic Method of Separation of Chemical Elements in Nuclear and Radiochemistry

Zvára

1990

Isotopenpraxis Isotopes in Environmental and Health Studies

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“…The formation of oxides and oxyhydroxides in O2/ HzO-containing gas chemical systems is typical for the group 7 elements and has extensively been studied [15][16][17][18][19][20][21][22][23], Due to their high volatility the oxyhydroxides are especially interesting for gas chromatography studies, since a high volatility of the investigated Compound allows high Separation factors from less volatile by-products, such as heavy actinides, Po, Pb, and Bi, which usually hamper detection of final products by a-spectroscopy. Thermodynamic data (see Table 1) indicate, that for carrier-free amounts of rhenium in a O2/H2O containing gas phase system, ReOj and HRe04 are the only stable volatile species.…”

Section: Thermochemistry Of the Oxid/oxyhydroxide Compounds Of Rementioning

confidence: 99%

“…With regard to our results a re-evaluation of previous thermochromatography experiments with Re in oxygen and water containing gas systems [17][18][19][20][21][22]44] was carried out. At similar experimental conditions Re Compounds were observed in these experiments at deposition temperatures near 820 K, 520 K, and in the charcoal trap behind the column.…”

Section: Update Of the Correlation Chartmentioning

confidence: 99%

The Gas Phase Oxide and Oxyhydroxide Chemistry of Trace Amounts of Rhenium

Eichler

Gäggeler

et al. 1999

Radiochimica Acta

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SummaryIn preparation of experiments to investigate the chemical properties of bohrium (Bh, element 107) the behaviour of Re, its lighter homologue in group 7, was studied in different oxidizing chemical systems. The adsorption data of Re oxide and oxyhydroxide Compounds on quartz surfaces were evaluated from results of thermochromatography experiments and confirmed in isothermal gas chromatography experiments applying 1 cm as Standard state for the simple gas adsorption process: An on-line Separation method for oxides and oxyhydroxides of Short lived Re isotopes using isothermal high temperature gassolid adsorption chromatography was deveioped. Separation yields and times of group 7 Clements from lanthanides (model for actinides), poIonium and bismuth were determined using the model isotopes and ^"Bi. An updated correlation function between the microscopic adsorption enthalpy and the macroscopic Sublimation enthalpy was calculated from the experimental adsorption data of this work and literature data.

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Fast gas-thermochromatographic separation of ruthenium neutron-deficient isotopes from silver chloride

Cited by 12 publications

References 11 publications

Sorption of Subgroup IV, V and VI Elements on Ion Exchangers from HCl/HF Solutions. Model Experiments for Chemical Studies of the Elements 105 and 106 in Aqueous Solution

Sorption of Subgroup IV, V and VI Elements on Ion Exchangers from HCl/HF Solutions. Model Experiments for Chemical Studies of the Elements 105 and 106 in Aqueous Solution

Thermochromatographic Method of Separation of Chemical Elements in Nuclear and Radiochemistry

The Gas Phase Oxide and Oxyhydroxide Chemistry of Trace Amounts of Rhenium

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