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The Effect of Eluent Concentration on the Separation of Nd with Ln-resin Method
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 Title & Authors
The Effect of Eluent Concentration on the Separation of Nd with Ln-resin Method
Lee, Hyo-Min; Lee, Seung-Gu; Tanaka, Tsuyoshi;
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 Abstract
The rare earth element(REE)s play an important role in understanding of rock formation and evolution because of their similar geochemical behaviors. Sm and Nd are more useful than other REEs because Sm-Nd isotopic system has important applications for geochemical interpretation like age dating and crustal evolution. These studies require a chromatographic technique for Sm and Nd separation from the geological samples. Ln-resin method using 0.25 M HCl as the eluent is widely used for Nd separation. However, this technique has a disadvantage of the poor elemental selectivity that the Nd fraction contains Ce as a tailing of the previous fraction. This technical report is a comparison study on the effect of eluent concentration between 0.25 M HCl and 0.15 M HCl on the separation of Nd with Ln-resin method for improving the technique of Nd separation. The results showed that the separation of Ce and Nd using 0.15M HCl as the eluent was not effective compared to the separation using 0.25 M HCl. In this experiment, we could confirm that the dilution of eluent might not be effective on the high purity separation of Nd with Ln-resin method.
 Keywords
Ln-resin method;Rare earth elements;Eluent Concentration;Separation;
 Language
Korean
 Cited by
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