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1.X荧光光谱溶液法测定钕铁合金中的Nd、Fe、La、Ce,Pr、Sm、Dy、Y 上海跃龙有色金属有限公司陆矞矞等同志研究了用X荧光光谱溶液法测定钕铁合金中的Nd、Fe、La、Ce、Pr、Sm、Dy、Y。因硝酸酸度对分析线强度几乎无影响,故在样品酸溶后加热蒸去过量酸,控制待测样的pH为0.5—2。溶液试样背景较低,且样品变化时背景无明显变化,故除Y_(Kα)线因在低角度背景高而作背景扣除外,其他谱线不扣背景。试样溶液稀土浓度为20g/l,即稀释比已达50,元素间效应大为降低,但Fe、La、Dy受基体效应的影响还较强。为此用XRF11软件计算基本系数,再由自编程序
Determination of Nd, Fe, La, Ce, Pr, Sm, Dy, Y in NdFeB by 1.X Fluorescence Spectrometry Solution Lu Yufang et al. Of Shanghai Yuelong Nonferrous Metals Co., Ltd. studied the determination of Nd, Fe, La, Ce, Nd, Fe, La, Ce, Pr, Sm, Dy, Y. Due to the acidity of the nitric acid has almost no effect on the strength of the analytical line, the acid is evaporated and the excess acid is evaporated and the pH of the sample to be tested is controlled to be 0.5-2. The background of the solution sample is low, and the background of the sample does not change significantly. Therefore, except the Y_ (Kα) line is deducted from the background due to the high background angle, the other lines do not buckle the background. The sample solution rare earth concentration of 20g / l, that is, the dilution ratio has reached 50, the inter-element effect is greatly reduced, but the Fe, La, Dy by the substrate effect is also strong. To do this, we use XRF11 software to calculate the basic coefficients, and then self programming