中药所含的某些化学成分,通过加热在一定温度下能升华获得升华物。借助显微镜进行观察,可直接见到呈一定形状、颜色的物质。也有的升华物需加入一些化学试剂,才显示某种颜色或形状的化学反应。利用一些中药有升华的特性来鉴别中药,具有设备简单、操作迅速的特点,下面举几例以供鉴别时参考。 Certain chemical constituents contained in Chinese medicine can be sublimated to obtain sublimated substances by heating at a certain temperature. With the help of a microscope, substances of a certain shape and color can be directly observed. Some sublimators need to add some chemical reagents to show the chemical reaction of a certain color or shape. The use of the characteristics of sublimation of some traditional Chinese medicines to identify traditional Chinese medicine has the characteristics of simple equipment and rapid operation. Here are some examples for reference when identifying.