Abstract
Vitamin C level in blood was determined by the 2,4-dinitrophenylhydrazine method. The values were obtained ranged from 0.2 to 1.4 with an average of 0.76 mg% in a series of 111 normal women. Excreted amount of vitamin C in urine was related definitely with the blood content, though when the latter was more than 1 mg%, the former increased markedly. When the subjects were given daily 300mg of vitamin C for several days, the blood content of vitamin C elevated to the maximum of 1.16〜1.36mg% and yet individuality was observed in this value. The rate of excretion in urine after the test dose of vitamin C was exactly proportional to the blood level. Therefore the blood level may be able employed for a satisfactory index of the nutritional status of this vitamin.
