cyclodextrine

1.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.

用萃取液体饮料中的防腐剂，使萃取液环糊精交联树脂分离后，用乙溶液洗脱。