八角茴香中莽草酸的分离与纯化研究.doc

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八角茴香中莽草酸的分离与纯化研究,4000字7页摘要 目的:应用各种提取分离方法,对八角茴香中的莽草酸进行提取分离,找出更加简便可行的方法。方法:用不同比例的水-乙醇液提取莽草酸,再重结晶,通过熔点测定、薄层色谱和紫外分光光度法测定莽草酸的纯度。结果:用95 %的乙醇来提取莽草酸效果最佳。结论:研究结果证实本实验所采用的提取工艺合理可行。关键词:八角茴...
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4000字 7页
摘要 目的:应用各种提取分离方法,对八角茴香中的莽草酸进行提取分离,找出更加简便可行的方法。方法:用不同比例的水-乙醇液提取莽草酸,再重结晶,通过熔点测定、薄层色谱和紫外分光光度法测定莽草酸的纯度。结果:用95 %的乙醇来提取莽草酸效果最佳。结论:研究结果证实本实验所采用的提取工艺合理可行。
关键词:八角茴香;莽草酸;提取分离

Abstract:Objective: By all kinds of different ways, we refine and seperate the Acid from Anissed to find out which way is simpler and feasibler. Methods:Firstly, according to the different ration of water and ethanol, we can refine Acid and form recrystallization. Secondly, we test the purity by TLC. At last, we test Shikimic Acid ’ S content by the measure of the UV spectrophotometry. Results:It is the best way to refine Shikimic Acid ’ S by 95 % ethanol. Conclusion:The result of reserch shows that it is reasonable to adopt to refine techology in this experiment
Key Words: Aniseed ;Shikimic Acid ;Refine and Separation