METHODS The hydroxyl groups of magnolol were protected using ketol reaction and the products were purified by recrystallization from hexane.
方法将厚朴酚两羟基用缩酮保护,再用正重离纯。
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.
用正取液体饮料中的防腐剂，使取液经环糊精交联树脂离后，用乙醇溶液洗脱。
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Consider this molecule, a hexane with a benzene ring attached to carbon number 2.
考虑这分子， 环连接到碳数 2 己烷。
Sometimes, a hexane can look like a pentane with an ethane sticking off of it.
有时，己烷看起像戊烷， 上面粘着乙烷。
But pentane, C5H12, has 3 possible isomers and C6H14, known as hexane, has 5.
但是戊烷 C5H12 有 3 种异构体， 而称为己烷 C6H14 有 5 种。
Ketones, add '-one', so a ketone of a hexane would be hexanone, and amines, you just add '-amine' to the end so methenamine or propanamine.
酮，添加“-one” ，所以己烷酮就是己酮，而胺，你只需在末尾添加“-胺” ，所以甲胺或丙胺。
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划词翻译
详细解释
重
离纯
。
取液体饮料中的防腐剂，使
分子， 
环连接到碳数 2 
己烷。
像戊烷， 上面粘着乙烷。
