The method is based on the separation of REE from the accompanied elements Fe, Al. Ca, Mg, Ba etc. by cation exchange resin. Then REE is coll- ected on cation exchange paper from hydrochloride medium at pH 1-2. Af- ter asking and ignition the residue is subjected to emission spectroscopic determination. The results of GSD reference samples and Canadian reference samples obtaind by this method and the certified values of these samples are listed for comparison.