蛍光X線分析法による高純度ムライト中の主成分及び微量成分の同時定量

概要

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A simple, rapid method for the simultaneous determination of the major and minor elements in high-purity mullite by XRF analysis is presented. The preparation of glassbead samples with a lower dilution factor was studied in detail in order to improve the stability of XRF measurements and analytical sensitivity. A 1.5g sample was fused with a 4.5g flux (mixture of LiBO_2 and Li_2B_4O_7 in a 1 : 1 ratio) in a platinum crucible containing 5% Au at 1100℃ for 6 min. Lithium bromide (75μl of 50% solution) was added into a flux as a removing additive. The proposed method was applied to the simultaneous determinatin of Al_2O_3,SiO_2,ZrO_2,MgO, TiO_2,Na_2O, CaO, Y_2O_3,Fe_2O_3,K_2O, HFO_2 in high-purity mullite; the results agreed well with those obtained by an ICP-AES analysis.
社団法人日本分析化学会の論文
1992-11-05