Abstract
From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium M+(aq) + 1·Cs+(nb) ⇆ 1·M+(nb) + Cs+(aq) taking place in the two-phase water–nitrobenzene system (M+ = Li+, Na+, K+, Rb+, H3O+, NH4 +, Tl+; 1 = beauvericin; aq = aqueous phase, nb = nitrobenzene phase) were determined. Moreover, the stability constants of the 1·M+ complexes in water-saturated nitrobenzene were calculated; they were found to increase in the series of Rb+ < Na+, H3O+ < Tl+ < NH + 4 < K+ < Li+.
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Acknowledgments
This work was supported by the Grant Agency of Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, project No. 42900/1312/3114 “Environmental Aspects of Sustainable Development of Society”, by the Czech Ministry of Education, Youth, and Sports (project MSM 6046137307), and by the Czech Science Foundation (project P205/10/2280).
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Makrlík, E., Selucký, P., Vaňura, P. et al. On the complexation of some univalent cations with beauvericin in nitrobenzene saturated with water. J Incl Phenom Macrocycl Chem 73, 329–333 (2012). https://doi.org/10.1007/s10847-011-0060-1
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DOI: https://doi.org/10.1007/s10847-011-0060-1