摘要
采用溶剂萃取法对β-环糊精水溶液反应体系中的β-环糊精进行了回收,发现:β-环糊精与反应体系中的有机物可形成包结物;不同有机溶剂和不同组成的混和溶剂对β-环糊精的回收率有较大影响,丙醇/水体积比为2∶1时,β-环糊精的回收率达95%;有机溶剂对β-环糊精水溶液反应体系中的有机物表现出不同的萃取效果;对苯甲醇和苯甲醛体系而言,乙酸乙酯是较好的萃取剂,对苯甲醇和苯甲醛的回收率可达到99%以上,可用于这两种有机物的快速定量.
The recovery of β-cyclodextrin from an aqueous reaction system was carried out by means of solvent extraction. It is found that （1） there exists an inclusion complex of β-cyclodextrin with organic compounds in the reaction system; （2） the recovery of β-cyclodextrin is greatly influenced by the variety of organic solvents and the composition of the mixed solvents, reaching 95 % when the ratio of acetone to water is 2：1 （volume ratio） ; （3） the extraction is significantly affected by the variety of organic solvents; and （4） in the aqueous β-cyclodextrin solution containing benzyl alcohol and benzaldehyde, ethyl acetate is a good choice to the quick quantitive determination of benzyl alcohol or benzaldehyde, with an extraction of more than 99%.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第4期1-5,共5页
Journal of South China University of Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(20576045)
新世纪优秀人才支持计划资助项目
关键词
Β-环糊精
回收
定量
包结
β-cyclodextrin
recovery
quantitative determination
inclusion
