Simultaneous Determination of 3 Components in Xiaoer Huadu Powder by HPLC / 中国药房

ABSTRACT

OBJECTIVE:To establish a method for simultaneous determination of paeoniflorin,berberine hydrochloride and ammonium glycyrrhizinate in Xiaoer huadu powder.METHODS:HPLC method was adopted.The separation was performed on Waters SunFireTM-C18 column with mobile phase consisted of acetonitrile-0.1％ phosphoric acid (gradient elution) at the flow rate of 1.0 mL/min.The detection wavelength was set at 238 nm,and column temperature was 25 ℃.The sample size was 10 μL.RESULTS:The linear ranges of paeoniflorin,berberine hydrochloride and ammonium glycyrrhizinate were 8.808-88.08 μg/mL(r=0.999 8),1.778-17.78 μg/mL(r=0.999 6),2.533-25.33 μg/mL(r=0.999 9),respectively.LOQ were 4.404,0.889,2.533 μg/mL;LOD were 1.101,0.445,1.267 μg/mL.RSDs of precision,stability and reproducibility tests were all lower than 2％.The recoveries were 95.08％-99.61％ (RSD=1.77％,n =9),96.93％-99.94％ (RSD=0.92％,n=9),98.33％-102.05％ (RSD=1.27％,n=9).CONCLUSIONS:The method is simple,accurate and reproducible,and can be used for simultaneous determination of paeoniflorin,berberine hydrochloride and ammonium glycyrrhizinate in Xiaoer huadu powder.