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二阶导数光谱法测定三黄片中盐酸小檗碱和黄芩甙的含量

DETERMINATION OF BAICALIN AND BERBERINE HYDROCHLORIDE IN SAN HUANG PIAN BY SECOND DERIVATIVE SPECTROMETRY

  • 摘要: 本文采用二阶导数光谱法测定中药复方制剂三黄片中盐酸小檗碱和黄苓甙的含量。样品提取液可不经分离,在UV-300型分光光度计用几何校正法,在751G型分光光度计上用代数校正法消除光谱干扰,直接进行测定。结果表明,采用UV-300型测得盐酸小檗碱的百分含量为1.24~1.42%,平均回收率101.0%,CV1.35%;黄芩甙百分含量3.87~3.53%,平均回收率96.2%,CV1.0%。用751G测得盐酸小檗碱百分含量为1.35~1.45%,平均回收率97.8%,CV2.76%,黄芩甙百分含量为2.59~2.58%,平均回收率92.4%,CV1.8%。

     

    Abstract: A method of the determination of baicalin and berberine hydrochloride in traditional Chinese medicine San Huang Pian With second derivativespectrometry was described.This method is based on the elimination ofinterfering in geometric and algebraic correct.

     

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