Comparison of conventional acid digestion with mixtures of acids HNO3, HClO4, and HF and thermal fusion utilizing Li borate as a fusion agent was made for solid samples. In the study, various parameters such as amount of the sample taken for the analysis, as well as addition of tracers before and after dissolution procedures were investigated. The obtained results showed that dissolution without any residue was achieved only when the fusion method was used. Thus, no filtration was needed prior to the loading of the sample on the resin to perform radiochemical separation. Alpha-particle spectrometry and neutron activation analysis were used for determination of the actinides content in the investigated samples as well as in residues obtained after dissolution.

中文翻译：

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比较固体样品的分解技术，重点是测定act系元素的含量。

比较了使用酸HNO3，HClO4和HF的混合物进行的常规酸消解，以及使用硼酸锂作为熔融剂进行热熔融的固体样品。在研究中，研究了各种参数，例如用于分析的样品量，以及在溶解程序之前和之后添加示踪剂。获得的结果表明，仅当使用融合方法时，才实现没有任何残留物的溶解。因此，在将样品加载到树脂上以进行放射化学分离之前，不需要过滤。使用阿尔法粒子光谱法和中子活化分析法确定所研究样品以及溶解后获得的残留物中the系元素的含量。