Quantitative Determination of Five Components Including Aloe Emodin,Rhein,Emodin,Chrysophanol and Physcione in Renshen Zaizao Pills Using UPLC-DAD Method
Objective To establish ultra high performance liquid chromatography-diode array detector(UPLC-DAD)method to determine the content of aloe emodin,rhein,emodin,chrysophanol and physcione in renshen zaizao pills.Methods Adopts Waters CORTECS UPLC C18 column(2.1 mm×100 mm,1.6 μm),with methanol(A),0.1%phosphate water(B)as the mobile phase,gradient elution,the flow rate was 0.3mL/min;the detection wavelength was 437 nm;the column temperature was 40℃.Results Aloe emodin,rhein,emodin,chrysophanol and physcione had good separation,with good linear relationship in the corresponding range,and the correlation coefficient(r)was not lower than 0.999 7,the average recovery rate was 92.5%,83.5%,94.3%,98.9%and 106.8%,and RSD(n=6)was 2.0%,1.2%,2.6%,2.4%and 2.4%,respectively.Conclusion The method used is accurate and reliable,and can be used for the quality control of renshen zaizao pills.