;
烷基;METHODS The hydroxyl groups of magnolol were protected using ketol reaction and the products were purified by recrystallization from hexane.
方法将
朴酚两羟基
缩酮保护,再正己烷重结晶分离
。
]己烷METHODS The hydroxyl groups of magnolol were protected using ketol reaction and the products were purified by recrystallization from hexane.
方法将朴酚两羟基缩酮保护,再正己烷重结晶分离。
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.
正己烷萃取液体饮料中
防腐剂，使萃取液经环糊精交联树脂分离后，
溶液洗脱。
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