Rare Earth Elements in Brown Coals from the Azeysk Deposit of the Irkutsk Coal Basin
S. S. SHATSKAYA, I. A. DEREVYAGINA, N. F. GLAZYRINA, A. V. GAPON’KO
Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
Keywords: the Azeysk deposit, brown coal, rare earth elements, mass spectrometry with inductively coupled plasma, spectrophotometry
Pages: 671-677
Abstract
An efficient procedure for sample preparation and determination of rare earth elements (REE) in the brown coals of the Azeysk by a highly sensitive method, mass spectrometry with inductively coupled argon plasma, has been developed. The relative standard deviations in REE determination by the semi-quantitative and quantitative methods do not exceed 15 and 8 wt%, respectively. The total content of rare earth elements is 0.92 ± 0.07 kg/t of coal, which was verified by an independent spectrophotometric method with аrsenazo III.
DOI: 10.15372/CSD2024602
EDN: ARVBOQ
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