Determination of Primary and Secondary Components in Specific Iron by Melting Sampling and X-Ray Fluorescence Spectroscopy

Li₂B₄O₇ and LiBO₄m(Li₂B₄O₇):m(LiBO₄)=67:33 were used as fluxes, and the specularite samples were melted into glass fuses at 1 120℃ with a 1:25 flux dilution ratio. Fe, Mn, Ti, Ca, Ba, Al, Mg, K, Na and P in the fuses were determined simultaneously on an X-ray fluorescence spectrometer. Since the sample was melted at high temperature with a large flux dilution ratio, the X-ray fluorescence intensities of K, Na and other elements were effectively enhanced, with the complex mineral structural effect eliminated, and the matrix effect between coexisting elements reduced, so the accuracy and precision of the analysis results were improved. The method has been applied to the analysis of iron ore standard samples. The measured values of each component were in accordance with the standard values.