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

Tritium oxide in urine is determinated by distillation and liquid scintillation method and total tritium (tritium oxide and organic tritium) in urine is determinated by oxidation distillation and liquid scintillation method. Tritium oxide and total tritium in 72 samples of urine in which tritium concentrations are more than radioactive background of the workers in the course of the decommissioning in 1999 are determinated at the same time.By comparison of the concentrations of tritium oxide and organic tritium, the average value (5.4±3.7)% of the concentration ratios of organic tritium to tritium oxide is obtained .