柱前衍生高效液相色谱法测定知母中菝葜皂苷元的含量Determination of sarsasapogenin in Rhizoma Anemarrhenae with precolumn derivatization by HPLC
彭缨,骆昉,王淑君,李玲芝,孙毓庆,潘卫三
PENG Ying,LUO Fang,WANG Shu-jun,LI Ling-zhi,SUN Yu-qing,PAN Wei-san(School of Pharmacy
摘要(Abstract):
目的建立用苯甲酰氯与菝葜皂苷元进行柱前衍生化反应,以HPLC-UV法测定知母药材中菝葜皂苷元的含量。方法采用Agilent C18柱(150 mm×4.6 mm,5μm),流动相为甲醇-水(体积比99∶1),检测波长为230 nm,流速为1.1 mL.min-1,柱温为33℃。结果菝葜皂苷元质量浓度在0.20~4.00 g.L-1内与峰面积呈良好的线性关系(r=0.999 6),平均回收率为98.3%(n=9),RSD为2.1%。结论本法可用于菝葜皂苷元的定量分析。
Objective To establish an HPLC-UV method for determination of sarsasapogenin in Rhizoma Anemarrhenae with benzoyl chloride derivate.Methods Chromatography was carried out on Agilent C18 column(150 mm×4.6 mm,5 μm),using methanol-water(V∶V=99∶1) as the mobile phase at a flow rate of 1.1 mL·min-1 and the detection wavelength was set at 230 nm.The column temperature was 33 ℃.Results The linear range of sarsasapogenin was 0.20-4.00 g·L-1(r=0.999 6).The average recoveries of sarsasapogenin was 98.3%(n=9).Conclusions This method can be used for determination of sarsasapogenin in Rhizoma Anemarrhenae.
关键词(KeyWords):
知母;菝葜皂苷元;柱前衍生化;高效液相色谱法
Rhizoma Anemarrhenae;sarsasapogenin;precolumn derivatization;HPLC
基金项目(Foundation):
作者(Author):
彭缨,骆昉,王淑君,李玲芝,孙毓庆,潘卫三
PENG Ying,LUO Fang,WANG Shu-jun,LI Ling-zhi,SUN Yu-qing,PAN Wei-san(School of Pharmacy