本文在资料的基础上,进一步研究了归一法在稀土标准问题中的应用。通过实验,测得了各单个稀土元素的标准吸光度E_(io),提出了E_(?)·、E_(?)·、K_n的计算公式,确定了铈标准工作曲线为测定稀土元素总量的统一标准工作曲线。九种合成样的分析结果较好,方法简便,合理,准确度较高,适用范围较广,为在稀土元素总量的光度测定中,解决统一标准问题提供了一条新途径。 Based on the data, this paper further studies the application of normalization method in rare earth standard questions. Through the experiment, the standard absorbance E io of each single rare earth element was measured and the formula of E _ (?) ·, E _ (·) ·, K_n was obtained. The standard working curve of cerium was determined for the unification of the total rare earth elements Standard working curve. The results of nine synthetic samples are good, the method is simple, reasonable, high accuracy and wide range of application. It provides a new way to solve the problem of uniform standard in the determination of the total amount of rare earth elements.