The determination of trace elements in whole coal by rhodium tube X-ray fluorescence spectrometry: a rock-based synthetic coal calibration |
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| Authors: | M.G. Dewison R. Kanaris-Sotiriou |
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| Affiliation: | 1. Departamento de Química, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil;2. Instituto Nacional de Ciência e Tecnologia do CNPq, INCT de Energia e Ambiente, Universidade Federal da Bahia, Salvador, BA, Brazil;1. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2. School of Energy and Environmental Engineering, Shanghai University of Electric Power, Shanghai 200090, China |
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| Abstract: | ![]()
A method is presented for the determination of 15 trace and minor elements (Fe, Ti, V, Cr, Mn, Ni, Cu, Zn, Pb, Sr, Rb, Ba, Zr, Y, Nb) in whole coal, by X-ray fluorescence spectrometry. A Rhanode X-ray tube is used and matrix corrections are derived from the intensity of the rhodium Kα Compton scattered tube line. The calibration is based on synthetic coals made from mixtures of standard rocks with graphite and cellulose, emulating the range of compositions likely to be encountered in bituminous coals. Robust pellets are made from 9 g of coal blended with a powdered binder. Results are presented for a number of standard coals. |
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