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４种蛇床子香豆素成分的ＴＬＣ图谱差别很大；正品蛇床子根据香豆素成分的ＴＬＣ结果可分为４种化学类型，分别测定了其中香豆素成分的含量。
The TLC spectra of four species of Cnidium comatus were very different; the Cnidium monnieri could be divided into four chemical types according to the TLC results of coumarin components, and the content of coumarin in them was determined.