中草药化学成分研究中几种不同浓缩方法效率的比较

THE COMPARISION OF THE EFFECIEN BETWEEN THE SEVERALDIFFERENT CONCENTRATION METHODS IN THE RESEARCH OF THECHEMICAL COMPONENTS OF CHINESE MEDICINAL PLANTS

通过实验，对三种不同浓缩方法的效率进行了比较。结果表明，真空薄膜浓缩法与其它两法相比，具有仪器容量大、浓缩速度快、受热时间短、操作简单、使用方便、工作效率高等优点。

his paper makes a comparison through experiments on the efficiency between the threedifferent methods of concentration. The result shows that the vacuum thin film coneentrationis superior to the other two methods. This method has the advantages of large instrument ca-pacity, fast concentration speed, simple operation, convenience in use, high efficiency and be-ing heated short-timed etc.