line-level: 2" class=MsoNormal>Determination of Major and Minor Components in Tungsten Concentrates by Wavelength Dispersive X-ray Fluorescence Spectrometry

• 责任者：Pu Xuli (Xiamen Entry-Exit Inspection and Quarantine Bureau ; Xiamen 361012 ; China) ; Wang Honghui
• 刊名：Rock and Mineral Analysis
• 出版年：2010
• 卷期：29(2)
• 关键词：钨矿 ; tungsten ores ; X射线荧光光谱 ; X-ray fluorescence spectra
• 页码：p.143-147
• 图表：8 tables, 20 refs.
• 分类号：0900
• issnNo：ISSN0254-5357
• isbnNo：CN11-2131/TD

line-level: 2" class=MsoNormal>A new method has been developed for the determination of 14 components including WO₃, Mn, Fe, CaO, SiO₂, Sn, Mo, Cu, Bi, Pb, Sb, Zn, Cd and Cr in tungsten concentrates by wavelength-dispersive X-ray fluorescence spectrometry. The samples were fused with mixture flux of Na₂B₄O₇ and Li₂B₄O₇ (65∶35) and the calibration samples were artificially synthesized with high purity compounds. The common background method was used for background calibration and the variable theoretical α-coefficient method was used for matrix effect calibration. The method provides the advantages of high accuracy, high precision, and high efficiency and has been applied to the routine analysis of tungsten concentrates.