Objective: To establish the quality criteria for xiaozhining tablet. Methods: TLC method was applicated to determine and differentiate the Scutellaria , the Radix salviae miltiorrhizae, the Rheum, the Leonurus of the tablet. HPLC method was used for detecting the content of emodin in xiaozhining Tablet. Results: Four main components of the tablet was determined well. The regression equation by HPLC was A=2.43?10 7C+6.06?10 4(r=0.999 7). Curcumin had good linear relation within the range of 0.5～0.05 mg/ml. The average recovery rate was 96.70%(RSD=1.06%). The average value of emodin was 0.021 4 mg. Conclusion: The method of determination is reliable. It can be used as the basis for the quality control of xiaozhining Tablet.

Objective: To apply D101 macroporous resin for separation and purification of triptolide. Methods: After extracted by alcohol the extracts were dissolved in water and passed through a macroporous resin column and a aluminum oxide column. Then the triptolide on the columns were eluated with 95% alcohol and determination by HPLC. Results:Triptolide could be retained on D101 column. Conclusion: D101 resin can be used to refine the triptolide.