Effect of Na+ on solvent extraction of alkaline earth metal cations by proton-ionizable calix[4]arenes

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dc.creatorTalanova, Galina G.
dc.creatorTalanov, Vladimir S.
dc.creatorSurowiec, Kazimierz (TTU)
dc.creatorBartsch, Richard A. (TTU)
dc.date.accessioned2022-05-19T20:07:05Z
dc.date.available2022-05-19T20:07:05Z
dc.date.issued2010
dc.descriptionThis work is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.description.abstractMetal ion recognition by proton-ionizable calixarenes is often affected by interference from the Na+ present in many aqueous solutions. To assess the Na+ -effect on calixarene selectivity towards alkaline earth metal cations (AEMC), competitive solvent extraction of Mg2+, Ca2+, Sr2+ , and Ba2+ from aqueous solutions into chloroform by di-ionizable calix[4]arene N- (trifluoromethylsulfonyl)carboxamides and corresponding carboxylic acids, conformationally mobile and restricted to cone, partial cone and 1,3-alternate conformations, was investigated in the absence and in the presence of aqueous-phase Na+ . The extraction selectivities were found to be altered due to contrasting Na+ -induced changes in the AEMC uptake. Observed increases in loadings of smaller AEMC are rationalized by their co-extraction with Na+.en_US
dc.identifier.citationTalanova, G. G., Talanov, V. S., Surowiec, K., & Bartsch, R. A. (2010). Effect of Na<sup>+</sup> on solvent extraction of alkaline earth metal cations by proton-ionizable calix[4]arenes. ARKIVOC, 2010(7), 160-169. https://doi.org/10.3998/ark.5550190.0011.712en_US
dc.identifier.urihttps://doi.org/10.3998/ark.5550190.0011.712
dc.identifier.urihttps://hdl.handle.net/2346/89329
dc.language.isoengen_US
dc.subjectNa+-Effecten_US
dc.subjectSelectivityen_US
dc.subjectAlkaline Earth Metal Cationsen_US
dc.subjectCalix[4]arenesen_US
dc.subjectSolvent Extractionen_US
dc.titleEffect of Na+ on solvent extraction of alkaline earth metal cations by proton-ionizable calix[4]arenesen_US
dc.typeArticleen_US

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