Abstract
Summary
A microbiological technic, employing Proteus morganii as the test organism for the assay of pantothenic acid, has been applied to evaluating the level of this vitamin in blood and urine.
It was found that the pantothenate content of blood from 17 normal persons ranged between 0.030 and 0.099 μg per ml of blood and averaged 0.059 μg per ml. The pantothenate content of 24-hour urine specimens from 9 persons ranged from 1.46 mg to 6.79 mg and averaged 3.81 mg.
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