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本工作是配合P_(507)萃敢剂简写HA_2)分离镥的性能测试而建立的。实际萃取分离对象是镱、镥富集物的硝酸或盐酸溶液。其中,镱的含量较高,串级分离后镥的含量逐渐升高,因此分析范围(以某稀土在总稀土中的含量——克分子百分率表示)定为镱和镥均在90％以上,铥和钇分别为10％及20％以下。对镥分量为90％以上的试样,则作镱-镥二元分析。以上四元及二元Re(NO_3)_3的总浓度约为0.03M(相当氧化物约为6毫克/毫升)。同时也采用本法,对水相及有机相中低浓度镥进行了测定,它们的最低点浓度相当的氧化镥分别约为0.008和0.005毫克/毫升。稀土元素的X射线荧光光谱分析报导很多,根据不同的分析对象,试样形式也不同。有
This work is in line with the P_ (507) extract dare to abbreviate HA_2) separation 镥 performance test established. The actual extraction and separation of objects is ytterbium, 镥 enrichment of nitric acid or hydrochloric acid solution. Among them, the content of ytterbium is higher, and the content of 镥 is gradually increased after the cascade separation. Therefore, the analytical range (expressed as the percentage of some rare earth in the total rare earth - mole percent) is set to be 90% or more for both ytterbium and 镥,铥 and yttrium are 10% and 20% respectively. For 镥 component of more than 90% of the sample, then ytterbium - 镥 binary analysis. The above four yuan and binary Re (NO_3) _3 total concentration of about 0.03M (equivalent oxide of about 6 mg / ml). At the same time, this method was also used to determine the low and medium concentrations in the aqueous and organic phases. Their lowest concentrations were about 0.008 and 0.005 mg / ml, respectively. X-ray fluorescence analysis of rare earth elements reported a lot, according to different analysis of the object, the sample form is also different. Have