Abstract
Objectives To investigate and validate potential standard compounds for standardization of Sinbaro3 pharmacopuncture prepared at OO Hospital of Korean Medicine. Methods Sinbaro3 pharmacopuncture was prepared by extraction, purification and hydrolysis of Harpagophytum procumbens, and various potential standard compounds were quantified through HPLC-UV and HPLC-MS analysis. Validation was examined by assessing specificity, linearity, precision, and accuracy. Results The retention time of harpagide and cinnamic acid were 15.2 min and 28.2 min, respectively, and both showed good linearity in analysis by concentration at 0.9999 and 0.9998, respectively. Intra-day variation of precision was 0.0015~0.0045% and 0.0058~0.1629%, while inter-day variation of precision was 0.0011~0.0243% and 0.0098~0.1629%, and that of accuracy was 99.53~99.89% and 99.50~99.91%, respectively. Conclusions Harpagide and cinnamic acid, which are hydrolyzates of harpagoside within Sinbaro3 pharmacopuncture, were both validated using HPLC-MS and HPLC-UV analysis, and Sinbaro3 pharmacopuncture contained 78.41 ug/ml harpagide, and 2.05 ug/ml cinnamic acid.
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