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《Journal of Anhui Technical Teachers College》 2005-01
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An Improved Method of Extraction of Caffeine From Tea

CHEN Zhong-ping,CHEN Jun-hua,LI Shao-jun,SONG Chang-chun,ZHAO Da-you (Department of Fundamental Science,Anhui Technical Teachers College, Fengyang 233100,China)  
The experiment of extraction of caffeine from tea is very professional which is time-consuming and the extracter used is poisonous. To stimulate students' interest in learning, reform teaching content and enhance students' ability, the paper studies the conditions of solution, the selection of extracters and heat strength control during the condensing of filtrate and sublimation following to improve them in terms of the principle of safety, economy, high-resolution and enviroment-conserving. The improved experiment has been applied to experimental teaching of fundamental chemistry and obtained perferable effect.
【Fund】: 安徽省教育厅教改课题(SJ200411);; 安徽技术师范学院教改课题(Y200412)
【CateGory Index】: TQ28
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【Co-citations】
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1 DU Zhi-lun,LIU Chuan-fang(Department of Chemistry and Life Science,West Anhui University,Lu'an 237012,China);Study on Synthesis of n-butyl Acetate Using Inorganic Catalysts[J];Journal of Hefei Teachers College;2008-03
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【Co-references】
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