Frischkorn C G, Frischkorn H E
Z Lebensm Unters Forsch. 1976 Nov 24;162(3):273-7. doi: 10.1007/BF01113309.
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.
采用液相色谱法，以硅胶为固定相，甲醇+0.5%氨水为流动相，对各种溶液中的奎宁进行定量测定。在所研究的软饮料中，奎宁的大致浓度在50.0至72.0毫克/升之间。同样经过研究的啤酒中不含奎宁。所提出的方法对于测定各种来源的水溶液中的奎宁也很有用。
