Separation and determination of rare earth elements by Dowex 2-X8 resin using sodium trimetaphosphate as elution agent

Sungur S., Akseli A.

JOURNAL OF CHROMATOGRAPHY A, vol.874, no.2, pp.311-317, 2000 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 874 Issue: 2
  • Publication Date: 2000
  • Doi Number: 10.1016/s0021-9673(00)00115-1
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.311-317
  • Istanbul Technical University Affiliated: No


The distribution coefficients of rare earth elements and thorium with Dowex 2-X8, 200-400 mesh, a strongly basic anion-exchange resin, have been determined regarding four different concentrations of sodium trimetaphosphate (3.10(-3), 5.10(-3), 7.10(-3) and 0.01 M). The separation of the rare earths and thorium obtained from an Australian monazite has been investigated by anion-exchange chromatography with sodium trimetaphosphate concentration gradient on a Dowex 2-X8 ion-exchange columns. The order of elution of the elements was the reverse of the order of elution of the same elements on Dowex 1 resin. The elution was investigated using 5 mg and 250 mg samples. In the separation of 5 mg samples, all elements were separated in 29 min. It has been seen that the elution peaks are narrow, tailing effects are very small, Dy and Y are well separated. Qualitative and quantitative determinations were realized by spectrofluorometry. (C) 2000 Published by Elsevier Science B.V. All rights reserved.