Nature

Use of Di-(2-ethylhexyl) Orthophosphoric Acid for the Separation of the Elements Lanthanum–Gadolinium by Reverse Phase Partition Chromatography

INVESTIGATIONS into the use of alkyl phosphoric acids as metal extractants have shown that there are relatively large differences between the stabilities of the complexes of individual rare earths ...
Nature

Use of Di-(2-ethylhexyl) Orthophosphoric Acid for the Separation of the Rare Earths by Reverse Phase Partition Chromatography

IT has been shown that relatively large separation factors may be obtained for adjacent rare earths by liquid-liquid extraction if di-(2-ethylhexyl) orthophosphoric acid (HDEHP) is used as the organic ...