Quality Standards of Liuwei Gancao Pills / 中国药房

OBJECTIVE: To establish quality standards of Liuwei gancao pills. METHODS: TLC method was adopted for qualitative identification of Glycyrrhiza uralensis in prescription. The content of liquiritoside was detected by HPLC. RESULTS: TLC spot was separated well and clear; the linear range of liquiritoside was 4.024 0～24.144 0 ?g?mL-1(r=0.999 7) with an average recovery of 98.3%(RSD=0.96%,n=6); the content of G. uralensis in each pill was not less than 2.8 mg by the content of liquiritoside. CONCLUSION: Established quality standards can be used for the quality control of Liuwei gancao pills.