Establishment of Quality Standard of Pingweishu Capsules

Abstract:

Objective: To establish the quality standards of Pingweishu capsules. Method: Coptis chinensis and Corydalis Rhizoma were identified by TLC. The content of berberine hydrochloride was determined by RP-HPLC. Result: The spots in the TLC were fairly clear, and no interference was shown in the blank samples. Berberine hydrochloride showed a good linear relationship within a range of 0.368-3.68 μg (r=0.999 8). The average rate of recovery was 99.86% (RSD 1.46%). Conclusion: The method is a simple, rapid and accurate analysis assay, which could be used for quality control of Pingweishu capsules.