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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 |
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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.
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