THE INDOLE ACIDS OF HUMAN URINE. PAPER CHROMATOGRAPHY OF INDOLE ACIDS
نویسندگان
چکیده
منابع مشابه
The indole acids of human urine; paper chromatography of indole acids.
Nencki and Sieber (1) first reported the formation of a red pigment in urine which had been made strongly acid by the addition of mineral acids, and they named the pigment “urorosein.” At one time considerable import was attached to the appearance of a strongly positive urorosein reaction (2, 3). Herter (2), however, established that this reaction frequently could be associated with gastrointes...
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Amino acid conjugates of IAA can be chromatographed on polyvinylpolypyrrolidone (PVPP) using either acidic methanol or aqueous buffers as eluents. In the aqueous system, elution of the compounds is pH-dependent, and the pattern obtained suggests that hydrophobic interactions contribute substantially to the chromatographic behavior of IAA peptides on PVPP. Purification of soybean seed extracts b...
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In the course of an investigation of the metabolism of aromatic compounds in phenylketonuria, it was found that, along with the abnormal metabolism of phenylalanine in this disease, there are other striking deviations from normal. These are manifested by the excretion of greatly increased amounts of some indole acids (1) and phenolic acids (2,3) which are present in normal human urine in small ...
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BOTJLANGER and BISERrE (1) used a solution of acid acetone for the extraction of amino acids in biologic material. The separation of amino acids on buffered papers described by Ryb#{225}r, Touek, and Hais, (2) and Hais and Hordovs/q (3) used the combination of tertiary butanolborate buffer system (pH 8.5) for separation of amino acids on paper. In our laboratories we have developed a chromatogr...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1958
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)70370-0