| 摘要 |
FIELD: analytical methods. ^ SUBSTANCE: method involves mixing uranium compound with all-purpose active additive, in particular urea. More specifically, following proportions of components are used: 45-49% of salt residue obtained after evaporation of uranium hexafluoride, 45-49% alumina, and 2-10% urea. Urea is added in the step wherein sample is being mixed with alumina powder. ^ EFFECT: increased analytic sensitivity and lowered boron detection threshold. ^ 2 dwg, 1 tbl |
