PROCEDURE DETERMINING CONCENTRATION OF MOLECULAR IODINE IN GASES Russian patent published in 2002 - IPC

FIELD: measurement technology, atomic power engineering, environmental control. SUBSTANCE: mixture to be analyzed is pumped through examined cell, fluorescent radiation is excited in it, concentration of isotopes ¹²⁹I and ¹²⁷I is determined in examined cell, intensity of laser radiation is measured before and after it hits examined cell, content of nitrogen dioxide in examined cell is found and concentrations of isotopes ¹²⁹I and ¹²⁷I in analyzed mixture are calculated by formulas taking into account composition of buffer gases. EFFECT: enhanced sensitivity of determination of concentration of isotopes of molecular iodine. 1 cl, 2 dwg