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首页> 外文期刊>X-Ray Spectrometry: An International Journal >PREPARATION OF THIN FILMS WITH LOADED RESINS FOR THE PRECONCENTRATION AND DETERMINATION OF RARE EARTH ELEMENTS BY X-RAY FLUORESCENCE SPECTROSCOPY
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PREPARATION OF THIN FILMS WITH LOADED RESINS FOR THE PRECONCENTRATION AND DETERMINATION OF RARE EARTH ELEMENTS BY X-RAY FLUORESCENCE SPECTROSCOPY

机译：用X射线荧光光谱法制备有负载树脂的薄膜用于富集和测定稀土元素。

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摘要

A method for preconcentration and elimination of the enhancement-absorption effects that occur in x-ray fluorescence analysis of trace rare earth elements (REE) is presented. The method consists in using chelating resins prepared by sorption of 2[2(5-chloropyridyl)azo]-5-dimethylaminophenol (5ClDMPAP) and quinolin-8-ol on Amberlite XAD-4 and XAD-7 macroporous resins to obtain thin films. These reagents proved to be good chelating agents for the preconcentration of some REE. The conditions for preparing thin films with the loaded resins were studied. The critical thicknesses of the films were experimentally determined and calculated. The absence of interferences was proved and the REE could be determined satisfactorily by x-ray fluorescence spectrometry. [References: 17]
机译：提出了一种预富集和消除痕量稀土元素（REE）的X射线荧光分析中发生的增强吸收效应的方法。该方法包括使用通过在Amberlite XAD-4和XAD-7大孔树脂上吸附2 [2（5-氯吡啶基）偶氮] -5-二甲基氨基苯酚（5ClDMPAP）和喹啉-8-醇制备的螯合树脂以获得薄膜。这些试剂被证明是某些REE预浓缩的良好螯合剂。研究了用负载树脂制备薄膜的条件。膜的临界厚度通过实验确定并计算。证实不存在干扰，并且可以通过X射线荧光光谱法令人满意地确定REE。 [参考：17]

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