Study on Quality Standard of Hovenia dulcis Thunb Extract / 中国中医药信息杂志

Objective To establish a quality standard of Hovenia dulics Thunb. Method The presence of quercetin was identified and assayed by TLC and HPLC, respectively. Result Linearity of marker was obtained over the range of 1.32 ～ 5.28 ?g (r =0.9999). The average recovery rate was 98.78% (RSD=1.08%). Conclusion TLC is specific. The method of quality is accurate, reappearance, simple, rapid, and suitable for the quality control of Hovenia dulcis Thunb.