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- Title
Aromatische Carbonsäuren im Urin: II. Mitteilung. Eine quantitative Bestimmungsmethode von (5-Hydroxy-5-indolyl)-essigsäure neben Vanillinmandelsäure aus dem Urin und deren allgemeine Problematik.
- Authors
GARTZKE, J.; MAJEWSKI, E.
- Abstract
Urinary (5-hydroxy-3-indolyl)-acetic acid and vanillinmandelic acid are extracted and separated from the other urinary phenolic carboxylic acids by thin layer chromatography on Kieselgel G with acidic eluants; they can then be determined colorimetrically after reaction with 2.6-dichlorquinone-4-chlorimide with pyridine as a catalyst. During the extraction of the urine, a large amount of (5-hydroxy-3-indolyl)-acetic acid is lost by decomposition. The literature values for the excretion of this acid are therefore too low.
- Publication
Clinical Chemistry & Laboratory Medicine, 1972, Vol 10, Issue 3, p108
- ISSN
1434-6621
- Publication type
Article