TLC method of Radix Paeoniae Alba, Fructus gardeniae, Radix Scrophalariae and CortexMoutan is reproducible;the average recovery of forsythin of HPLC was 96.44% and RSD was 1.226%.

白、、玄参、牡丹皮薄层鉴别方法耐性良好，次野鸢尾黄素含量测定方法标回收率为96.44%，RSD为1.226%。