Determination of Hf, Sc and Y in geological samples together with the rare-earth elements | Zendy

N. Lihareva | Zendy; Michel Delaloye | Zendy

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Determination of Hf, Sc and Y in geological samples together with the rare-earth elements

Author(s) -

N. Lihareva,

Michel Delaloye

Publication year - 1997

Publication title -

fresenius journal of analytical chemistry

Language(s) - English

Resource type - Journals

eISSN - 1432-1130

pISSN - 0937-0633

DOI - 10.1007/s002160050159

Subject(s) - elution , oxalic acid , chemistry , matrix (chemical analysis) , analytical chemistry (journal) , decomposition , rare earth , mineralogy , chromatography , inorganic chemistry , organic chemistry

A method is described for the determination of Hf, Sc and Y simultaneously with the REE in geological materials. An earlier method for REE separation from major elements was studied with the aim to apply it also to the determination of Hf, Sc and Y. Sample decomposition was carried out by melting with LiBO2. The method involves separation and concentration stages, using the cation-exchange resin DOWEX AG 50W-X8. Matrix elements were eluted with 2 mol/1 HCl, whereas 6 mol/1 HNO3 with oxalic acid and 8 mol/1 HNO3 were used to elute the elements to be determined. Some of the matrix elements could not be completely removed. This effect as well as the recovery rates of the determined elements were investigated. The measurements were performed by ICP-AES. Spectral interferences were also tested.

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