Determination of vanadium pentoxide in stone coal vanadium ore by polarized energy dispersive X ray fluorescence spectrometry with sample solution preparation
YANG Ya ling, YAN Wen bin*, CAI Jun, KUANG Hongsheng, GAO Feng, HUA Jun
College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
Abstract：After dissolved with nitric acid and hypochloric acid and prepared by solution method, the content of vanadium pentoxide in stone coal vanadium ore was quantitatively determined by polarized energy dispersion X ray fluorescence spectrometry (EDXRF).The high purity vanadium pentoxid was dissolved with hydrochloric acid to prepare calibration solution, and calibration curve was plotted with linear correlation coefficient of 0.999 7 and detection limit of 1.99 mg/L. The elements in the sample including Si, Ca, Fe, Al and Mg had no significant influence on the determination of vanadium. The XRF spectra indicated that the Kα lines of Si, Ca, Fe, Al and Mg were not overlapped with the Kα line of V. Moreover, the Kβ lines and secondary lines of these elements also had no overlapping with the Kα line of V. The precision test showed that the relative standard deviation (RSD, n=10) was 1.5%. The proposed method was applied to the analysis of vanadium in stone coal vanadium ore. The results were consistent with those obtained by titration.
阳亚玲，颜文斌，蔡俊，匡洪生，高峰，华骏. 溶液制样-偏振能量色散X射线荧光光谱法分析石煤钒矿中五氧化二钒[J]. 冶金分析, 2014, 34(12): 13-16.
YANG Ya ling, YAN Wen bin, CAI Jun, KUANG Hongsheng, GAO Feng, HUA Jun. Determination of vanadium pentoxide in stone coal vanadium ore by polarized energy dispersive X ray fluorescence spectrometry with sample solution preparation. , 2014, 34(12): 13-16.
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