caa a22 4500 445881542 CHVBK 20180317145545.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00604-011-0609-0 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0609-0 Atanassova Maria Department of General and Inorganic Chemistry, University of Chemical Technology and Metallurgy, 8 Kliment Okhridski blvd, 1756, Sofia, BG, Bulgaria aut Lanthanoid complexes with thenoyltrifluoroacetone and 4- tert -butylcalix[4]arene-tetraacetic acid tetraethyl ester: synergistic extraction and separation [Elektronische Daten] [Maria Atanassova] The solvent extraction of fourteen lanthanoid ions with thenoyltrifluoroacetone (HTTA) in combination with tetraethyl 4-tert-butylcalix[4]arene-tetraacetic acid tetraethyl ester (S) from a perchlorate medium at constant ionic strength was investigated. The extracted species were identified as the Ln(TTA)3·S complexes by slope analysis. Equilibrium constants, parameters for extraction, and the synergistic and separation factors between two adjacent Ln(III) ions were determined. Online abstract The solvent extraction of 14 lanthanoids (Ln) with thenoyltrifluoroacetone (HTTA) in combination with 4-tert-butylcalix[4]arene-tetraacetic acid tetraethyl ester (S) is investigated. The composition of the extracted species has been found as Ln(TTA)3·S. The values of the equilibrium constants, the synergistic and separation factors between two adjacent Ln(III) ions have been calculated. Springer-Verlag, 2011 Lanthanoids nationallicence Synergistic solvent extraction nationallicence Calix[4]arene nationallicence Thenoyltrifluoroacetone nationallicence Separation factors nationallicence Microchimica Acta Springer Vienna 174/1-2(2011-07-01), 175-181 0026-3672 174:1-2<175 2011 174 604 https://doi.org/10.1007/s00604-011-0609-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0609-0 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Atanassova Maria Department of General and Inorganic Chemistry, University of Chemical Technology and Metallurgy, 8 Kliment Okhridski blvd, 1756, Sofia, BG, Bulgaria aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 174/1-2(2011-07-01), 175-181 0026-3672 174:1-2<175 2011 174 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer