Radix et Rhizome Rhei, Radix Angelicae Dahuricae, Rhizome Chuanxiong,Radix Angelicae Sinensis,Sanguis Draconis were checked out by TLC.

• 结果改进疮疡膏的生产工艺，薄层色谱均检出大黄、白芷、川芎、当归、血竭特征斑点；