Study on Measurement and Comparative Analysis of Tritium Oxide and Full Tritium in Urine

Concentration of tritium oxide in urine was determinated by distillation and liquid scintillation method and that of total tritium (tritium oxide and organic tritium) in urine by oxidation distillation and liquid scintillation method.Tritium oxide and total tritium in 72 urine samples from the workers in which tritium concentration is more than radioactive background were determinated in the course of the decommissioning in 1999.Tritium oxide and organic tritium concentrations were comparatived,and the average value of the concentration ratio of organic tritium to tritium oxide was (5 4±3 7)%.Experimental value complies basically with the theoretical one.