ISOLATION OF DEHYDROISOANDROSTERONE SULFATE FROM NORMAL MALE URINE
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منابع مشابه
The isolation of crystalline erythritol from normal human urine.
With the finding that xylitol is an intermediate in the glucuronate-xylulose pathway (2, 3)) experiments were undertaken to determine whether this pentitol occurs in human urine. Instead of xylitol, the analyses led to the isolation of n-arabitol from pentosuric urine as well as nL-arabitol from normal urine (4). During the fractionation of urinary polyols on Dowex l-borate columns, eluates wer...
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the spectra illustrated in Fig. 1 confirm the identity of the isolated material. The salt was hydrolyzed by dissolving the sample in 20 ml of tetrahydrofuran containing perchloric acid (5). After 3 hours at 50”, the solution was brought to neutrality with concentrated NH*OH and the tetrahydrofuran was evaporated under vacuum at 45”. The residue was then partitioned between water and ether, and ...
متن کاملIsolation of isoxanthopterin from human urine.
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1944
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)72091-7