Objective: To establish the quality standard for Qiangnaosu capsule.
Methods: TLC was used for the qualitative identification of Saposhnikoviae Radix, Chuanxiong Rhizoma, Chrysanthemum Flos, Fructus Viticis. HPLC was used to determine the content of ferulic acid.
Results: TLC spots were clear, well-separated and specific. The linear range of ferulic acid was 2.93 - 20.50 microg/mL (r = 0.9996). The average recovery was 98.1% and RSD was 1.42%.
Conclusion: The method is reliable and specific. It can be used for the quality control of Qiangnaosu capsule.
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