title: [Use of solid phase extraction for rapid sample preparation in the determination of food constituents. I. Quinine in beverages].
abstract: A routine method was developed for the determination of quinine in spirits and alcohol-free beverages. Using ion pair chromatography quinine was separated from interfering substances by high-performance liquid chromatography on a RP 18 phase and analysed by UV and fluorescence detection. In contrast to the analysis of alcohol-free beverages, sample preparation was necessary in the study of alcoholic beverages. Solid-phase extraction on phenyl sorbens was found to be a rapid, specific and simple technique.
authors.affiliation: Lehrstuhl für Lebensmittelchemie, Universität Würzburg, Bundesrepublik Deutschland.
authors.forename: M
authors.initials: M
authors.lastname: Wörner
authors.forename: M
authors.initials: M
authors.lastname: Gensler
authors.forename: B
authors.initials: B
authors.lastname: Bahn
authors.forename: P
authors.initials: P
authors.lastname: Schreier
mesh_terms: D001628:Beverages / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D005504:Food Analysis / Q000379:methods*; D011803:Quinine / Q000032:analysis* / Q000302:isolation & purification; D013050:Spectrometry, Fluorescence
chemical_list: D011803:Quinine
vernacular_title: Anwendung der Festphasenextraktion zur raschen Probenvorbereitung bei der Bestimmung von Lebensmittelinhaltsstoffen. I. Chinin in Getränken.