METHODS AND OBJECTS OF CHEMICAL ANALYSIS ISSN title: "Metody i obʺekty himičeskogo analiza" An international journal devoted to all aspects of Analytical chemistry ISSN 2413-6166 (Online), ISSN 1991-0290 (Print)
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Meshkova S.B., Antonovich V.P., Tarasenko S.A., Topilova Z.M., Zinchenko V.F., Timukhin E.V., Chivireva N.A., Devyatykh N.N.

The determination of Eu²⁺and Eu³⁺ contents in fluorides EuF_3-х   

The possibility of nondestructive control of Europium forms content in the different oxidation degrees at their both presence in EuF_3-х was showed. The optimal conditions of simultaneous Eu²⁺, Eu³⁺ excitation in solids and quantitative their determination on the base calculated integral intensities of all bands in luminescence spectrum and general quantity of europium in fluoride were found established.

Keywords: luminescence, europium fluorides, Eu²⁺, Eu³⁺