44. Решение задачи по химии №004 407

421. Calculate the concentration of uranium in solution according to the following data by determining it by the luminescent method.
0.05 cm3 of solution dried and fused with 100 mg NaF+NaKCO3 mixture (9:91). The relative luminescence of the melt was 38% of that of the standard containing 0.50 mg of uranium.

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