HPLC同时测定槐角丸中生药槐角的4种有效成分

目的:建立测定槐角丸中游离染料木苷、芸香苷、槲皮素和染料木素的反相高效液色谱测定法。方法:shim-pack Vp-ODS色谱柱(4.6 mm×150 mm,5μm);MeOH-H₂O-HAc(40∶60∶0.25)为流动相;检测波长为256 nm;柱温30℃。结果:染料木苷在0.059~0.352μg、芸香苷在0.435~2.610μg、槲皮素在0.020~0.121μg、染料木素在0.053~0.319μg线性关系良好,r分别为0.999 6,0.998 2,0.998 9,0.999 9,4组分平均回收率在98.7%~100.2%,RSD分别为1.21%,1.36%,0.47%,1.54%(n=5)。结论:该方法同时测定4种有效成分,方便、准确、灵敏度高,重复性好,可适用于槐角丸质控。

Simultaneous determination of the four effective components in Huaijiao pill by HPLC

OBJECTIVE: To develop an HPLC method for determination of the four effective components (genistin; rutin; quercetin; genistein) in Huaijiao pill. METHOD: The chromatographic separation was performed on a Shim-packODS (4.6 mm x 150 mm, 5.0 microm) eluted with a mobile phase of MeOH-H2O-HAc (40:60:0.25). The detection wavelength was set at 256 nm and column temperature was set at 30 degrees C . RESULT: Nice linear relation between the peak area and injected amount exists when the amount is within 0.059-0.352 microg for genistin, within 0.435-2.610 microg for rutin, within 0.020-0.121 microg for quercetin and within 0.053-0.319 microg for genistein. The correlation coefficient of each component is 0.999 6, 0.998 2, 0.998 9 and 0.999 9 respectively. The average recoveries of the four components are from 98.7% to 100.2%. The RSD of each group are 1.21%, 1.36%, 0.47% and 1.54% (n = 5). CONCLUSION: The method was accurate, repeatable and suitable to determine four effective components in Huaijiao pill. It can be use for quality control of Huaijiao pill.