摘要
In the last ten years, the study of thin-layer chromatographic separation of the rare earth elements （REE） has been developed rapidly. H. Specker et al.have separated successfully 14 REEs by TLG on stationary phase silanised silica gel and the developing solvent dietbyl ether-tetrahydrofuran-bis-（2-ethylhexyl）phosphate-concentrated HNO3.In a previous paperr, we described the satisfactory separation of 5 light REEs by TLG using mono-tetradecyl phosphoric acid as a developing solvent.
