摘要
"从茶叶中提取咖啡因"是医学院校有机化学中的一个经典实验。针对此实验常出现咖啡因产品的纯度和产量均低的现象,为了提高产品的纯度与产量,笔者对影响该实验结果的四个实验步骤进行操作要点的解析,粗浅的谈了一些教学体会,仅供实验者参考借鉴。
The extraction of caffeine from the tea is a classical organic chemistry experiment in the medical colleges and universities. The common questions were the lower purity and yield of the caffeine. In order to improve the yield and purity of the product, we analyzed the key points of the four experimental procedures in this experiment, and concluded some teaching experiences.
出处
《中国西部科技》
2014年第9期111-112,共2页
Science and Technology of West China
关键词
茶叶
提取
咖啡因
纯度
教学体会
Tea
Extraction
Caffein
Purity
Teaching Experience
