Centrifugal enrichment of zinc isotopes, their application in medicine and in increasing radiation safety in nuclear power plants

Tcheltsov, A.N.; Sosnin, L. Yu.; Shipilov, Yu.D; Zaozersky, Yu.P.; Khamylov, V. K.; Pochekutova, T. S.

doi:10.1016/j.nima.2005.12.227

Cited by 10 publications

(4 citation statements)

References 2 publications

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“…(b) Assuming original data provides a 10% overestimate of fraction plated, the data yield a best fit a electrochemical = 0.9981, and a better fit through the data. raphy (Ban et al, 2002;Marechal and Albarede, 2002) and centrifugation (Tcheltsov et al, 2006). Our results bolster the idea that redox processes are associated with a greater isotope fractionation than non-redox related chemical processes of the same element.…”

Section: Discussionsupporting

confidence: 79%

Redox-driven stable isotope fractionation in transition metals: Application to Zn electroplating

Kavner

John

Sass

et al. 2008

Geochimica et Cosmochimica Acta

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Section: Discussionsupporting

confidence: 79%

Redox-driven stable isotope fractionation in transition metals: Application to Zn electroplating

Kavner

John

Sass

et al. 2008

Geochimica et Cosmochimica Acta

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“…10 Since the highly radioactive isotope 65 Zn with the half-life of 245 days is produced by thermal neutron capture by 64 Zn, 64 Znfree zinc is desirable for applying this technique. In this context, the isotope separation performance by chemical exchange methods (solvent extraction and liquid chromatography) [11][12][13][14][15][16][17][18][19][20][21][22][23] and a centrifugal method 24 has been investigated.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Investigation of Isotope Fractionation of Zinc between Aqua, Chloro, and Macrocyclic Complexes

et al. 2010

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This work reports on the chemical isotope fractionation of Zn(II) by a solvent extraction method with the crown ether dicyclohexano-18-crown-6. The (m)Zn/(64)Zn ratios (m = 66, 67, and 68) were analyzed by multiple-collector inductively coupled plasma mass spectrometry. The relative deviations of the (66)Zn/(64)Zn ratios relative to the unprocessed material (delta(66)Zn) was determined to be -0.51 to -0.32 in the acidity region 1.0-6.0 mol dm(-3) (M) HCl. The acidity dependence of delta(m)Zn was explained by the isotope exchange reactions between Zn(II) species (Zn(2+), ZnCl(+), ZnCl(2), ZnCl(3)(-), and ZnCl(4)(2-)) and the mole fractions of them. The magnitude of delta(m)Zn due to the related Zn(II) species estimated by quantum chemical calculations was in agreement with delta(m)Zn experimentally obtained. Contribution of nuclear field shift to the isotope fractionation was estimated to be less than 10% of delta(m)Zn by quantum chemical calculations.

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“…Since the highly radioactive isotope 65 Zn with the half-life of 245 days is produced by thermal neutron capture by 64 Zn, 64 Zn-free zinc is desirable for applying this technique. In this context, the isotope separation performance by chemical exchange methods (solvent extraction and liquid chromatography) − and a centrifugal method has been investigated.…”

Section: Introductionmentioning

confidence: 99%

Mass-Dependent and Mass-Independent Isotope Effects of Zinc in a Redox Reaction

et al. 2009

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We report the isotope fractionation of zinc (Zn) associated with a redox reaction between Zn(0) and Zn(II). Zn isotopes were found fractionated in pyrometallurgical biphase extraction between liquid zinc and molten chloride. The isotopic composition of Zn in the molten chloride phase was analyzed by multiple collector inductively coupled plasma mass spectrometry and reported as (m)Zn/64Zn (m = 66, 67, and 68) ratios. The observed isotope fractionation consists of the mass-dependent and mass-independent isotope effects. The contributions of the nuclear mass and the nuclear volume to the overall isotope effect were evaluated by employing first-principles quantum calculations and using reported isotope shifts in atomic spectra. The magnitude of the mass-dependent isotope effect was explained by the sum of the isotope effect via intramolecular vibrations and the correction to the Born-Oppenheimer electronic energy. The mass-independent isotope effect was correlated with the Gibbs free energy change in the redox reaction.

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Centrifugal enrichment of zinc isotopes, their application in medicine and in increasing radiation safety in nuclear power plants

Cited by 10 publications

References 2 publications

Redox-driven stable isotope fractionation in transition metals: Application to Zn electroplating

Redox-driven stable isotope fractionation in transition metals: Application to Zn electroplating

Experimental and Theoretical Investigation of Isotope Fractionation of Zinc between Aqua, Chloro, and Macrocyclic Complexes

Mass-Dependent and Mass-Independent Isotope Effects of Zinc in a Redox Reaction

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