Abstract:The samples were prepared by fusion method using anhydrous lithium tetraborate as flux. Seven components (including Zn, Pb, Fe, Cu, SiO2, As and Cd) in zinc concentrates were determined by wavelength dispersive X-ray fluorescence spectrometry. Low temperature preoxidation treatment was carried out with LiNO3,and thus the corrosion problem of platinum-gold alloy crucible was resolved. Calibration curve was established by eight zinc concentrates standard materials. The matrix effect was corrected by the theoretical alpha coefficients. The relative standard deviations (RSD, n=11) of all the components determined in zinc concentrates were between 0.20 % and 6.8 %. The method has been applied to the determination of these components in standard materials and practical samples, and the analytical results were in good agreement with certified values of standard materials and values found of practical samples by chemical methods.
唐梦奇,黎香荣,罗明贵,阮贵武,吕泽娥,刘国文 . X射线荧光光谱法测定锌精矿中主次量成分[J]. 冶金分析, 2012, 32(7): 55-58.
TANG Meng-qi, LI Xiang-rong, LUO Ming-gui,et al. Determination of major and minor components in zinc concentrates by X-ray fluorescence spectrometry.. , 2012, 32(7): 55-58.