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The fluorogenic derivatization of 5-hydroxyindoles, catecholamines and catechols with benzylamine (BA) and diphenylethylenediamine (DPE), mediated by the presence of an oxidant such as potassium hexacyanoferrate, followed by liquid chromatography with fluorescence detection has become an established approach for the bioanalysis of this group of biologically important substances. The derivatization...
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