Comparison of decomposition techniques for solid samples with emphasis on actinide content determination.

Comparison of conventional acid digestion with mixtures of acids HNO, HClO, 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.