[Determination of phenolic compounds in alcoholic beverages by HPLC with an electrochemical detector].
A method has been developed for the quantitative determination of phenolic lignin degradation products in alcoholic distillates. After diluting the samples with the eluent (1:5-1:10, v/v) the phenolic compounds are separated by high-pressure liquid chromatography and detected by an electrochemical detector at +1.3 V. To identify the compounds the k'-values and the hydrodynamic voltammograms of the samples are compared with those of the standard solution. Several distilled alcoholic beverages were analysed. The content of phenolic compounds was found to vary between 0.15 and 7.7 mg/l. The detection limits were 0.3-0.9 ng.
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Institut für Analytische Chemie der Universität Wien, Osterreich.
Friedrich
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D000434:Alcoholic Beverages / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D004563:Electrochemistry; D010636:Phenols / Q000032:analysis*
D010636:Phenols
Bestimmung phenolischer Verbindungen in alkoholischen Getränke durch HPLC mit elektrochemischem Detektor.