Simultaneous determination of four constituents in Tangzu San by high performance liquid chromatography
XU Lu′na1,2 XIA Miaofen2 ZHOU Yufang3 YUAN Qiang1
1.College of Pharmacy, Zhejiang Chinese Medical University, Zhejiang Province, Hangzhou 310053,China;
2.College of Traditional Chinese Medicine, Zhejiang Pharmaceutical College, Zhejiang Province, Ningbo 315503, China;
3.Department of Pharmacy, Zhejiang Hospital, Zhejiang Province, Hangzhou 310013, China
Abstract:Objective To establish a high performance liquid chromatography method for the simultaneous content determination of four constituents in Tangzu San. Methods SilverSil C18 (4.6 mm×250 mm, 5 μm) column was used as the column, acetonitrile-0.1% phosphoric acid was used as the mobile phase of the gradient elute, and the flow rate of 1.0 mL/min, the colomn temperature maintained at 35℃. With the detection wavelength of 278 nm. Results The regression equations of hydroxy safflower yellow A, paeoniflorin, ferulic acid and β-ecdysterone were Y = 12 183X-5645.7, Y = 10 438X-22 481, Y = 34 706X-1790.1, Y=13 500X-898.66 respectively. The method showed good linearity (all r ≥ 0.9995) within the linear range. The average recoveries were in the range of 96.86%-101.72%. Conclusion The method can provide scientific basis for the quality control of Tangzu San.