土茯苓与白土茯苓均为百合科植物,正品土茯苓为光叶菝葜的干燥根,白土茯苓则是肖菝葜的干燥根;由于两者切成饮片后,外形极相似,所以容易混淆,采用荧光鉴别法来鉴别能迅速,有效地分清正品与混淆品,其具体方法就是先将样品分别研粉,取2种原药粉各1g Both soil and white earthworms are Liliaceae plants. The authentic soil lice are the dry roots of the light leafhopper, and the white soil worms are the dry roots of the Xiaoyao. Since the two are cut into pieces, the shape is very similar, so it is easy to be confused. The use of fluorescent identification method to identify quickly and effectively distinguish between genuine and confused products, the specific method is to first separate the sample powder, take two kinds of original powder each 1g