Isotope effects in the V(IV)-malate complex formation system

Zhang, Yonghong; Ban, Y.; Nomura, Masao; Fujii, Yasuhiko

doi:10.1016/s0277-5387(03)00121-9

Cited by 8 publications

(4 citation statements)

References 28 publications

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“…2 should be larger than unit one in each operated system. This was consistent with the prediction that the heavier zinc isotopes were expected to fractionation into the strong bound chemical species based on the theory of isotope effects in molecular vibration [ 10 ].…”

Section: Resultssupporting

confidence: 91%

“…Table 3 presents the separation coefficient ε and the related data of the isotopic pair of 68 Zn/ 64 Zn obtained in this work along with the results reported from the VO 2+ , Cu 2+ , Gd 3+ and UO 2 2+ in malate and EDTA 4− ligand exchange systems [ 9 , 10 , 24 – 27 ].…”

Section: Resultsmentioning

confidence: 92%

“…On the contrary, the separation coefficients of vanadyl carboxylate system followed the inverse order lactate > citrate > > malate [9]. Table 3 presents the separation coefficient ε and the related data of the isotopic pair of 68 Zn/ 64 Zn obtained in this work along with the results reported from the VO 2+ , Cu 2+ , Gd 3+ and UO 2 2+ in malate and EDTA 4− ligand exchange systems [9, 10, 24–27]. …”

Section: Resultsmentioning

confidence: 94%

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Chromatographic Zinc Isotope Separation by Chelating Exchange Resin

Ding

Nomura

Suzuki

et al. 2010

Chroma

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Zinc isotope separations were studied by displacement chromatography using the chelating properties of malate, citrate and lactate exchange resin and EDTA as ligands. After each chromatographic operation, the heavier zinc isotopes were found to preferentially fractionated into the carboxylate complex solution phase. The separation coefficients (ε) for zinc isotope separation had the largest value and were obtained for the isotopic pairs 68Zn/64Zn (7.16 × 10−4) and 66Zn/64Zn (3.08 × 10−4), respectively, at 298 ± 1 K. The separation coefficient per unit mass differences (ε/ΔM) for the isotopic pair of 68Zn/64Zn was found to range around 1.55 × 10−4.

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 94%

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Chromatographic Zinc Isotope Separation by Chelating Exchange Resin

Ding

Nomura

Suzuki

et al. 2010

Chroma

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“…However, we would like to state that the values of "=Ám in this work fall in the typical range of ion exchange isotope effects of transition metals, such as Fe, Cu and V investigated by Fujii and his group. [7][8][9][10] 3. Mass and Temperature Dependences of Zn Isotope Effects Based on the conventional theory established by Bigeleisen and Mayer, 11) the " can be simply expressed as follows:…”

Section: Fractionation Coefficient " and Its Evaluationmentioning

confidence: 99%

Zinc Isotope Effects Observed by Liquid Chromatography with Benzo-15-Crown-5 Resin

Zhang

Fukuda

Nomura

et al. 2006

Journal of Nuclear Science and Technology

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The chromatographic fractionation in Zn isotopes was performed on the synthesized benzo-15-crown-5 resin at 313 and 343 K. The lighter isotopes were found enriched in the resin phase. The isotope fractionation coefficients (") were 3. Zn isotopic pairs at 313 and 343 K, respectively. They reflected mass-dependence among the Zn isotopes at each operated temperature but did not show 1=T 2 -temperature proportionality. The temperature effects of the composition of Zn species both in the solution phase and in the resin phase may account in part for the latter observation. The magnitudes of "'s in this study were comparable to the ones obtained by ion exchange chromatography, but much smaller than those observed in the solvent extraction systems with a crown ether in the organic phase.

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Vanadium isotope measurement by MC-ICP-MS

Tian

et al. 2016

Chemical Geology

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Isotope effects in the V(IV)-malate complex formation system

Cited by 8 publications

References 28 publications

Chromatographic Zinc Isotope Separation by Chelating Exchange Resin

Chromatographic Zinc Isotope Separation by Chelating Exchange Resin

Zinc Isotope Effects Observed by Liquid Chromatography with Benzo-15-Crown-5 Resin

Vanadium isotope measurement by MC-ICP-MS

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