This paper introduced the determination of the ferulic acid of tianbao capsule and the identification of the effective components of it by the TLC densitometric determination.

• 天宝胶囊中阿魏酸的薄层扫描测定邱宁婴顾萱马仁玲（中国药科大学分析中心，南京210009）关键词阿魏酸；