引用本文:
吴云英, 谢建新, 伍贤学, 陈文静, 苟高章. 茶叶中咖啡因的提取实验装置的改进与探索[J]. 大学化学,
2019, 34(3): 42-46.
doi:
10.3866/PKU.DXHX201807053
Citation: WU Yunying, XIE Jianxin, WU Xianxue, CHEN Wenjing, GOU Gaozhang. Improvement and Exploration of Experimental Setup for Extraction of Caffeine from Tea[J]. University Chemistry, 2019, 34(3): 42-46. doi: 10.3866/PKU.DXHX201807053
Citation: WU Yunying, XIE Jianxin, WU Xianxue, CHEN Wenjing, GOU Gaozhang. Improvement and Exploration of Experimental Setup for Extraction of Caffeine from Tea[J]. University Chemistry, 2019, 34(3): 42-46. doi: 10.3866/PKU.DXHX201807053
茶叶中咖啡因的提取实验装置的改进与探索
English
Improvement and Exploration of Experimental Setup for Extraction of Caffeine from Tea
Abstract:
The extraction experiment of caffeine from tea was a classic experiment in Organic Chemistry Laboratory. In this paper, the original Soxhlet extractor device used in the experiment was modified and obtained the internal ventilation Soxhlet extractor, which was used in laboratory teaching. The extraction effects of the improved Soxhlet extractor and the original Soxhlet extractor were compared by the control experiment. The results showed that the improved device keeps the function and characteristics of the original devicewith the shorter the extraction time, higher extraction temperature and the extraction rate. Thus, it may provide an alternative for college organic laboratory teaching.
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Key words:
- Caffeine
- / Organic chemistry laboratory
- / Soxhlet extractor
- / Device improvement
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