DEVELOPMENT OF A STANDARD SAMPLE OF APATITE CONCENTRATE. EFFECTIVE CONTROL OF HOMOGENEITY BY XRF ANALYSIS METHODS

This work presents the results of the homogeneity study of apatite concentrate for the purpose of further development of a standard specimen. The homogeneity was determined based on the distribution of Ca, P, Fe, Ti. The samples were analyzed via XRF methods for elements from P to Sr. For the first time the scanning XRF microscopy method was described and used for these purposes. A methodological approach for the use of scanning XRF microscopy was developed for the evaluation of standart specimen’s homogeneity and for the selection of the marker-element, limiting the homogeneity. The procedures for data statistical analysis are given, for data received by the Russian’s JSC «Nauchnye pribory» scanning XRF microscope «RAM-30μ». A comparison of the results, gained by the developed methodological approach, and the classical methods of homogeneity evaluation, described in GOST 8.531–2002 and GOST 27872–88 is given.

Keywords

XRF analysis, apatite concentrate, standard specimen homogeneity, homogenous distribution of elements, scanning XRF microscopy, analysis of big data, statistical analysis.

Issue number: 7
Year: 2016
ISBN:
UDK: 543.427.4
DOI:
Authors: Yunovidov D. V., Sokolov V. V., Bakhvalova E. V., Donskikh V.A.

About authors: Yunovidov D. V., Researcher, e-mail: Dm.Yunovidov@gmail.com, JSC «Scientific-Research Institute on Fertilizers and Insectofungicides named after professor Y.V. Samoilov» (JSC «NIUIF»), 162622, Cherepovets, Russia, Sokolov V. V., Candidate of Technical Sciences, Head of Department, JSC «Scientific-Research Institute on Fertilizers and Insectofungicides named after professor Y.V. Samoilov» (JSC «NIUIF»), 162622, Cherepovets, Russia, Bakhvalova E. V., Candidate of Chemical Sciences, Leading Specialist, JSC «Scientific Instruments», 190103, Saint Petersburg, Russia, Donskikh V. A., Engineer, JSC «Scientific Instruments», 190103, Saint Petersburg, Russia, Oskolok K. V., Candidate of Chemical Sciences, Assistant Professor, Lomonosov Moscow State University, Moscow, Russia, Bakhvalov A. S., Candidate of Physical and Mathematical Sciences, Leading Specialist, JSC «Scientific Instruments», 190103, Saint Petersburg, Russia.

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