Quality evaluation of Suhexiang pills by HPLC fingerprint and multi-component quantitative analysis
Objective:To establish the HPLC fingerprint of Suhexiang pills and determine the contents of gallic acid,piperine,costunolide,eugenol and cinnamic acid simultaneously,and to provide reference for the quality control method of Suhexiang pills.Methods:The separation was performed on a Swell Chromplus C18 column(250 mm ×4.6 mm,5 μm)with methanol(A)-0.05%phosphoric acid solution(B)as the mobile phase at a flow rate of 1.0 mL·min-1.The detection wavelength was 220 nm and the column temperature was 30 ℃.Fifteen batches of Suhexiang pills were analyzed.The"Traditional Chinese Medicine Fingerprint Similarity Evalu-tion System"was used to establish the reference fingerprint and the similarity analysis was evaluated in combina-tion with cluster analysis and principal component analysis.Results:The fingerprint of Suhexiang pills was estab-lished,and the similarities of 15 batches of samples were above 0.9.Thirteen common peaks were identified,and five components including galliic acid,cinnamic acid,eugenol,piperine and costunolide were identified.The contents of the five components were 2.506-3.652 mg·g-1,0.666-0.876 mg·g-1,3.834-5.140 mg·g-1,0.884-1.306 mg·g-1 and 19.908-55.704 mg·g-1,respectively.Using cluster analysis,15 batches of Suhexiang pills were divided into four categories.Three principal components were selected,and the cumulative variance contribution rate was 76.102%,indicating that the principal components could contain most of the infor-mation of the original data.Conclusion:The fingerprint and multi-component content determination method of Suhexiang pills are stable and reliable,which can provide reference for the quality control and clinical application of Suhexiang pills.