高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (S1): 290.

• Chromatography and Separation Sciences • 上一篇    下一篇

Effective Mutual Separation of Europium(Ⅲ) from Gadolinium(Ⅲ) by Using ODS Modified with Bis(l,l,3,3-tetramethylbutyl) phosphinic acid——Extraction Chromatography in HGlyc Acid-HN03 System

WANG Qiu-Quan1, HUANG Ben-Li1, Kin-ichi TSUNODA2, Hideo AKAIWA2   

  1. 1. Department of Chemistry and the Key Laboratory of Analytical Sciences of MOE, Xiamen University, Xiamen 361005, P. R. China;
    2. Department of Chemistry, Faculty of Engineering, Gunma University, Kiryu 376-8515, Japan
  • 出版日期:1999-12-31 发布日期:1999-12-31

Effective Mutual Separation of Europium(Ⅲ) from Gadolinium(Ⅲ) by Using ODS Modified with Bis(l,l,3,3-tetramethylbutyl) phosphinic acid——Extraction Chromatography in HGlyc Acid-HN03 System

WANG Qiu-Quan1, HUANG Ben-Li1, Kin-ichi TSUNODA2, Hideo AKAIWA2   

  1. 1. Department of Chemistry and the Key Laboratory of Analytical Sciences of MOE, Xiamen University, Xiamen 361005, P. R. China;
    2. Department of Chemistry, Faculty of Engineering, Gunma University, Kiryu 376-8515, Japan
  • Online:1999-12-31 Published:1999-12-31

摘要:

It is well known that lanthanides is one of the most difficult groups of elements to be separated in the periodical table because of the so-called lanthanide contraction. Among lanthanides,the 4f orbital of gadolinium(Ⅲ) is half-filled——4f7,such a stable configuration leads to the effects from coordination field weaker on gadolinium than that on the adjacent lanthanides, and the stabilities of gadolinium(Ⅲ) complexes somewhat lower than those of europium(Ⅲ) in some cases.

Abstract:

It is well known that lanthanides is one of the most difficult groups of elements to be separated in the periodical table because of the so-called lanthanide contraction. Among lanthanides,the 4f orbital of gadolinium(Ⅲ) is half-filled——4f7,such a stable configuration leads to the effects from coordination field weaker on gadolinium than that on the adjacent lanthanides, and the stabilities of gadolinium(Ⅲ) complexes somewhat lower than those of europium(Ⅲ) in some cases.

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