Abstract
Objective To establish HPCE method for determining the mangiferin in Baihe Zhimu decoction.Methods Rutin was used as internal standard.An uncoated fused silica capillary (77 cm×75 μm,effective length of 70 cm) was served as separation gate.The electrolyte buffer was composed of 12 mmol/L borax-MeOH (90 ∶ 10).20 kV voltages were applied and detection wavelength was set at 318nm.Results Mangiferin was successfully separated within 20 rin,the linear response range was 0.06～1.14 mg/ml.The average recovery was 99.0％.Conclusion The method was simple,rapid and well reproducible.It could be used as a reliable tool for the quantity control of Baihe Zhimu decoction and descriptions containing mangiferin. Key words: Baihe Zhimu decoction; Mangiferin; HPCE
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