文摘
A novel and rapid ultra performance liquid chromatography–mass spectrometry method was developed and validated for simultaneous determination of eight constituents in ‘Ge-Gen-Qin-Lian’ tablets. A UPLC BEH C18 column (2.1 ¡Á 100 mm, 1.7 μm) was utilized in this method, and a mixture of methanol, 0.1 % formic acid, and 5 mmol L−1 ammonium acetate was adopted in the gradient elution program. The mass spectrometer equipped with an electrospray ionization source was performed in the selected-ion reaction (SIR) mode. A good linearity correlation (R 2 > 0.9991) was obtained over the investigated concentration ranges. Recoveries of this method for the eight components were from 96.00 to 100.6 % (RSD % < 3.4 % ).