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引言X-射线荧光光谱分析法分析矿石中的铌和钽,前人已做过很多工作。为了减少和消除元素间的吸收增强影响、粒度影响、矿物的不均匀性等方面的影响因素,大多数分析工作者将试样制成硼砂珠。有的采用钼作铌的内标、锌倣钽的内标。为了进一步稳定试样间的质量吸收系数,有人在玻璃体中加入重吸收物质La_2O_3。此外,西村耕一等提出用硫酸氢钾熔样,并以铪作钽的内标、钼作铌的内标。除了上述的熔样法外,Y.C.Wong等提出用惰性稀释剂法(An Inert Dilution Method)分析精矿中铌、钽等
Introduction X-ray fluorescence spectrometry analysis of niobium ore and tantalum, many people have done a lot of work. Most analysts make borax beads to reduce and eliminate the effects of enhanced absorption between elements, size effects, mineral inhomogeneities, and more. Some use molybdenum as niobium internal standard, zinc imitation tantalum internal standard. In order to further stabilize the mass absorption coefficient between the samples, some people add the reabsorption material La 2 O 3 in the vitreous body. In addition, Tsune Nishimura and other proposed potassium hydrogen sulfate melting sample, and hafnium for tantalum internal standard, molybdenum niobium for the internal standard. In addition to the above-mentioned method of melting, Y.C. Wong et al proposed the use of an inert diluent method (An Inert Dilution Method) analysis of niobium concentrate, tantalum, etc.