ZHENG Feng, GAO Youliang
(the Basic Course Department)
Abstract: In the paper,the authors put forward using column chromatography P507 as stationary phase,eluting with HCI- NH4Cl solution,to separate Samarium,Europium and Gadolinium from concentrate of Samarium and Gadoliniurn,the various fractions,each of which was the HCI- NH4Cl solution containing a single rare-earth element and it's composition was simple,were directly titrated with normal EDTA slution to determine the content of Samarium,Europium or Gadolinium in each.
Key words: Separation and Determination of Samarium;Europium and Gadolinium; column chromatagraphy