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KMID : 1059519910350050520
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Journal of the Korean Chemical Society
1991 Volume.35 No. 5 p.520 ~ p.526
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Retention Behavior of Lanthanides on Dinonylnaphthalene Sulfonic Acid Equilibrated Cation Exchanger
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Joe Kih-Soo
Han Sun-Ho
Suh Moo-Yul
Eom Tae-Yoon
Kim Youn-Doo
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Abstract
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Retention behavior of lanthanides was studied on the dynamic system using dinonylnaphthalene sulfonic acid cation exchanger and tartaric acid as a complexing agent. The relations between logk' and log[NH4+]/log[tartarate], and between logk' and logR showed good linearity in isocratic and gradient elution, respectively. In gradient elution of tartaric acid the slopes were increased as the initial concentrations were decreased. Column efficiencies and resolution of lanthanides on dinonylnaphthalene sulfonic acid equilibrated cation exchanger were found to be better in α-hydroxyisobutyric acid eluent than in tartaric acid.
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