Abstract
We describe an analytical procedure for the simultaneous determination of 5-hydroxyindole derivatives using high-pressure liquid chromatography with electrochemical detection. The procedure clearly resolves 5-hydroxytryptophan, 5-hydroxytryptamine, 5-hydroxytryptophol, and 5-hydroxyindole-3-acetic acid. The C-18 extraction column methodology and high-pressure liquid chromatography-electrochemical detection parameters have been developed to provide a rapid, sensitive, and reproducible quantitative determination of these 5-hydroxyindoles with picogram sensitivity. Chromatograms obtained from the analysis of whole normal mouse brain by the present technique clearly resolve the 5-hydroxyindoles and appear to be uncomplicated by interfering substances.
Published Version
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