[A rapid method for the determination of quinine in soft drinks and other aqueous solutions (author's transl)].
Quinine is determined quantitatively with a liquid-chromatographic method in various solutions using silica as a stationary and methanol + 0.5% ammonia as a mobile phase. The approximate concentrations of quinine were found to be between 50.0 to 72.0 mg/1 in the soft-drinks investigated. Beers, which were also investigated do not content quinine. The method presented is also useful for determining quinine in aqueous solutions of various origin.
D001628:Beverages / Q000032:analysis*; D002253:Carbonated Beverages / Q000032:analysis*; D008722:Methods; D011803:Quinine / Q000032:analysis*
D011803:Quinine
Schnellbestimmung von Chinin in Getränken und sonstigen wässrigen Lösungen