Simultaneous Determination of 11 Components in Niaodukang Mixture by UHPLC-ESI-MS/MS
OBJECTIVE To established a UHPLC-ESI-MS/MS method for simultaneous determination of gallic acid,calycosin-7-glucoside,rutin,hyperoside,salvianolic acid B,rhein,astragaloside Ⅳ,cryptotanshinone,emodin,tanshinone Ⅰ,tanshinone ⅡA in Niaodukang mixture.METHODS InertSustainR C18(3.0 mm× 100 mm,3.0 μm)column was used,mobile phase was methanol(A)-0.l%formic acid(B)with gradient elution at a flow rate of 0.4 mL·min-1,and the injection volume was 20 μL.The mass spectrometry used the electrospray ionization source(ESI source).Multiple-reaction monitoring was employed with switching electrospray ion source polarity in positive and negative mode.RESULTS The peak area and mass concentration of 11 components in Niaodukang mixture showed a good linear relationship within the linear range.The precision of RSD were<3.0%,the average recoveries ranged from 98.44%to 103.56%,RSD ranged from 2.04%to 3.34%.CONCLUSION The method is stable,accurate,and simple,which can be used to control and evaluate the quality of Niaodukang mixture.It can also provide evidence for clinical application and research of Niaodukang mixture.