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本方法应用GSPI-70型半米光栅摄谱仪,采用固体粉末法,以多种化合物作缓冲剂,钪作内标,上下电极同时装样测定矿石中La、Ce、Y、Yb四个稀土元素。测定范围La 0.01-1％,ce 0.07-1％,Y 0.005-0.2％,Yb 0.0005-0.02％,单次摄谱均方误差La±10％,Yb±8.5％,Y±10.8％,Ce±13.8％工作条件及操作手续摄谱仪:GSPI-70型半米光栅摄谱仪,二级光谱中间波长3100(?),三透镜照明系
The method uses GSPI-70 semi-rice grating spectrometer, using solid powder method, a variety of compounds as a buffer, scandium as an internal standard, the upper and lower electrode simultaneous loading sample determination of La, Ce, Y, Yb four rare earth element. The measurement range La 0.01-1%, ce 0.07-1%, Y 0.005-0.2%, Yb 0.0005-0.02%, the mean square error La ± 10%, Yb ± 8.5%, Y ± 10.8%, Ce ± 13.8% Operating Conditions and Operating Procedures Spectrograph: GSPI-70 half-meter grating spectrometer, secondary spectrum intermediate wavelength 3100 (?), Three-lens lighting