Abstract：11 components in iron ore (including TFe, MgO, Al2O3, SiO2, P, S, TiO2, CaO, Mn, Cu and Zn) were determined by energy dispersive X-ray fluorescence spectrometry after sample preparation by pressed powder pellet. The sample preparation pressure and time was 30 MPa and 30 s, respectively. The sample particle size was 200-mesh (74 μm). Meanwhile, the production samples which were certified by chemical method were used for the drawing of calibration curve. The influence of mineral effect and particle size effect on the analytical results could be furthest eliminated. The spectral overlapping interference and absorption enhancing effect among components were corrected by the empirical coefficient method. The correlation coefficients of calibration curves of components were all higher than 0.999. The precision test was investigated using one iron ore sample. It was found that the relative standard deviations (RSD, n=10) were between 0.14% and 5.8%. The accuracy test of actual iron ore sample was conducted. The found results were consistent with those obtained by titration method (for TFe) and inductively coupled plasma atomic emission spectrometry (ICP-AES, for other elements). The proposed method was especially applicable for the batch analysis of large amount of iron ore samples.
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