Main compositions: Spring water extract, VA acid, Protein complex, Extract of sweet tea, Sorbierite extract.

温泉水精华、VA酸、蛋白复合物、甜茶、山梨醇精华。

Main compositions: Pomegranate essence, Ginkgo Biloba Extract, VC mucopolysaeccharide, Sweet tea extract, Unique factor, Extracting solution of grape pip.

红石榴素、银杏精华、VC粘多糖、甜茶、制因子、葡萄籽提。

The perservative in liquid beverage was extrcated with n-hexane.The hexane layer was subjected to cyclodextrine polymer resin colume.The colume was eluted with aqueous solution of ethanol.

用正己烷体饮料中的防腐剂，使糊精交联树脂分离后，用乙醇溶洗脱。