FIELD: radiochemical analyses. SUBSTANCE: method includes separation of iodine radionuclides from water coolant by means of silver-impregnated adsorbent. Coolant sample is passed through organic membrane adsorbent having pore diameter of 0.45 0.55 mcm and prior to do so pH value of sample is corrected by bringing it to 2.0 11.0 with aid of chemical agent. EFFECT: enhanced radiochemical purity of iodine radionuclides, efficacy of check, and safety in operation. 5 cl, 6 tbl, 6 ex
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