Attainment the electrolytic recovery of tritium by the relationship between deuterium and tritium separation factors

Electrolytic enrichment liquid scintillation counting is the main method to measure the tritium in natural water since its low level tritium activity. When a batch of samples for tritium in water was enriched in electrolysis cells, the tritium recovery is determined by enrichment factor and separation factor. Data for deuterium and tritium separation factors show close adherence to a linear relationship, In β = η In α. The tritium separation factor is attained by the experiment of electrolysis of tritium standard water, and the deuterium separation factor is determined by cavity ring-down method. The consistent η is 1.27 when it is used steel-nickel cell, Na₂O₂ as Electrolyte, and temperature is 0.5 ℃. According to the relationship of In β = 1.27 In α, the tritium separation factor and the tritium recovery of natural water samples are attained. (authors)