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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 35, Number 5
JKCSEZ 35(5)
October 20, 1991 

 
Title
Retention Behavior of Lanthanides on Dinonylnaphthalene Sulfonic Acid Equilibrated Cation Exchanger

Dinonylnaphthalene Sulfonic Acid 를 양이온 교환체로 이용한 동적계에서 희토류 원소의 머무름 거동
Author
Kihsoo Joe, Sun Ho Han, Moo Yul Suh, Tae Yoon Eom, Youn Doo Kim

조기수, 한선호, 서무열, 엄태윤, 김연두
Keywords
Abstract
Dinonylnaphthalene sulfonic acid(DNNS) 양이온 교환체와 tartaric acid 착화제를 이용하는 동적계에서 희토류원소의 용리거동을 연구하였다. 등용매 용리에서 logK' vs log[NH4+] 및 logK' vslog[tar-tarate]의 관계가 직선으로 나타났다. Tartaric acid에 대한 기울기 용리에서 logK' vs logR의 관계의 기울기값은 초기 농도가 낮을수록 증가하였다. DNNS 이온교환체에서 히토류 원소의 분리관 효율 및 분해능은 tartaric acid 용리제보다 α-hydroxyisobutyric acid 용리제가 더 우수한 결과를 주었다.

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.

Page
520 - 526
Full Text
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