- 上一篇：季戊四醇单缩醛（酮）的合成
- 下一篇：离子液体中醛烯胺酮与4-羟基喹啉-2-酮的反应研究
摘要：大孔树脂吸附水中的天然产物的应用在人们生活中被越来越重视。大孔树脂有容易再生、吸附效果好、稳定性能好、解析条件温和等诸多优点，在医学、药物学等行业有着广泛的应用。本实验通过改变乙醇水溶液的浓度、银杏酸溶液的浓度来对比不同树脂的吸附能力，以及对饱和的树脂进行脱附实验，得出最佳的吸附树脂。本实验对流出液的吸光度和透光率进行了表征，记录下定量的流出液的吸光度和透光率进行作图。比较三种树脂的吸附和脱附情况的差别和对银杏酸溶液的吸附能力。由实验结果可知，体积分数越大的乙醇水溶液清洗的效果越好，在不影响实验结果的情况下，本课题采用50%的乙醇水溶液来清洗树脂。一号树脂对体积分数为1%和10%的银杏酸溶液的吸附效果最好。在饱和吸附实验中，一号树脂对银杏酸溶液的吸附和脱附效果最好。43629
关键词：大孔树脂；银杏酸溶液
Utilization of Resin to Separate Natural Products in Water
Abstract
Abstract: Macroporous resin adsorbed natural products in water is becoming more and more important in people’s life. The advantages of macroporous resin are easily recycle, better adsorption effect, better stability, desorption conditions mild and so on. It is widely used in medicine, pharmacology and many other industries. In this experiment, we change the concentration of ethanol water solution and the concentration of Ginkgo acid solution to compare the adsorption capability in three different resins and desorbed the saturated resin to get the best resin. This experiment characterize the absorbance and transmittance of the effluent, and record the same quantity of the effluent. Mapping the absorbance and transmittance of the effluent and compared the differences in adsorption and desorption of three resins and the capability of adsorbed Ginkgo acid solution. From the experimental results, the greater the volume fraction is the better cleaning effect of ethanol solution. Without affecting the results of the case, we use 50% of ethanol solution to cleaning the resin. The No.1 resin has the best adsorption effect to adsorb 1% and 10% ginkgo acid solution. In the adsorption experiments, the No.1 resin has the best effect in adsorption and desorption of ginkgo acid solution.
KeyWords：macroporous resin; ginkgo acid solution
目 录
目 录 i
1 绪论 2
1.1.1 大孔吸附树脂概述 2
1.1.2 大孔吸附树脂的分离原理 2
1.1.3 吸附及解吸的影响因素 3
1.1.4 大孔吸附树脂在天然产物分离中的应用 4
1.2 选题的目的与意义 5
1.3 方案论证 6
2 实验 7
2.1 实验药品 7
2.2 实验仪器 7
2.2.1 紫外可见光分光光度计 8
2.2.2 离子交换柱