ABSTRACT
AIM:To set up a determination of tanshinone Ⅱ_A and cryptotanshinone in Compound Danshen Tablet(Radix Salviae Miltiorrhizae, Radix Notoginseng, Borneolum Syntheticum) by RP-HPLC. METHODS:Two components could be separated through YWG-C_~18 column with methanol-water (75∶25 by volume) as a mobile phase. The flow rate was 1.0 mL?min~-1 , and the detection wavelength was at 270 nm. RESULTS: The linear range of tanshinone Ⅱ_A and cryptotanshinone were 2.5-50.0 ?g?mL~-1 and 0.625-12.5 ?g?mL~-1 , respectively. The average recovery was 99.76% with RSD 0.92% for tanshinone Ⅱ_A and 98.34% with RSD 0.71% for cryptotanshinone, respectively. CONCLUSION: The method is simple, accurate and rapid with good reproducibility. It can be used for the quality control of Compound Danshen Tablet.
ABSTRACT
AIM: To set up identification of Flos Lonicerae and determination of chlorogenic acid in Yingqiao jiedu Pills (Flos Lonicerae, Fructus Forsythiae, Radix Glycyrrhizae, Herba Menthae, etc.) by HPLC. METHODS: A YWG C 18 column was used with the mobile phase consisted of CH 3OH 10%Na 2HPO 4 (adjusting pH to 2.7 with HAc) as gradient elution. The flow rate was 1.0mL?min -1 , and the detection wavelength was at 326nm. RESULTS: Flos Lonicerae in Yinqiaojiedu Pills was identified by HPLC UV. The linear range of chlorogenic acid was 5.0～60?g?mL -1 ( r =0.9999). The average recovery was 98.71% with RSD of 1.55% ( n =5). CONCLUSION: The method is simple, accurate and rapid with good reproducibility. It can be used for the quality control of Flos Lonicerae in Yinqiaojiedu Pills.