
Estimation of radiation dose from ingested tritium in humans by administration of deuterium-labelled compounds and food
D/H ratios in urine and 13C/12C ratios in breath
D2O and D-labelled glucose were administered once to volunteers, orally, while D-labelled alanine and D-labelled palmitic acid were administered once daily for four successive days. The D/H ratios in urine, after the administration of D2O and D-labelled glucose, are shown in Fig. 2, and those of D-labelled alanine and D-labelled palmitic acid are shown in Fig. 3. Boiled green soybean, which was cultivated hydroponically in 20{431c92db2ef93c421a350be785d244bd702e2c73a34f2b6f60cd8fd62b61507d} D2O solution, was administered as D-labelled soybean on weekdays, for 2 weeks, and the subsequent D/H