TY - JOUR

T1 - Method for iodine radionuclides separation from primary coolant samples

AU - Epimakhov, Vitaly N.

AU - Orlov, Sergey N.

AU - Mysik, Sergey G.

AU - Podshibyakin, Dmitry S.

AU - Fomenkov, Roman V.

AU - Skripkin, Mikhail Yu

PY - 2023/4/15

Y1 - 2023/4/15

N2 - A method is presented for isolating iodine isotopes from aqueous coolant of the nuclear power plants’ first circuit. At first, all forms of iodine radionuclides are converted into molecular form by the sequential addition of a carrier–potassium iodide, as well as hydroxylamine chloride, nitric acid and potassium nitrite. Then molecular iodine is transferred into the gas phase and volatile iodine radionuclides are immobilized on a membrane impregnated with metallic silver. The main advantage of the method is high selectivity of iodine release in relation to radionuclides interfering with the measurement of its activity.

AB - A method is presented for isolating iodine isotopes from aqueous coolant of the nuclear power plants’ first circuit. At first, all forms of iodine radionuclides are converted into molecular form by the sequential addition of a carrier–potassium iodide, as well as hydroxylamine chloride, nitric acid and potassium nitrite. Then molecular iodine is transferred into the gas phase and volatile iodine radionuclides are immobilized on a membrane impregnated with metallic silver. The main advantage of the method is high selectivity of iodine release in relation to radionuclides interfering with the measurement of its activity.

KW - Carrier phase

KW - Fuel cladding integrity

KW - Iodine radionuclides

KW - Selective isolation

KW - Silver impregnated membrane

UR - https://www.mendeley.com/catalogue/75abafad-8327-306e-b1d7-98af7e027a46/

U2 - 10.1007/s10967-023-08893-6

DO - 10.1007/s10967-023-08893-6

M3 - Article

VL - 332

SP - 1767

EP - 1774

JO - Journal of Radioanalytical and Nuclear Chemistry

JF - Journal of Radioanalytical and Nuclear Chemistry

SN - 0236-5731

IS - 6

ER -