用毛细管区带电泳 ,以叠加对比法对阿片粉中的吗啡进行了定量分析 ,样品的回收率为 10 0 .6 % ,色谱峰迁移时间的相对标准偏差 (RSD)不大于 2 .4 % ,相对迁移时间的RSD不大于 1.1% ,相对峰面积的RSD不大于 0 .5 1%。与内标对比工作曲线法作了比较 ,实验表明两种分析方法的结果无显著性差异 ,叠加对比法具有简便、快速、准确的优点 ,可用于样品中有效成分的快速定量 By capillary zone electrophoresis, morphine in opium powder was quantitatively analyzed by superposition method. The recovery rate was 100.6%, and the relative standard deviation (RSD) of migration time was not more than 2.4% Relative migration time RSD not more than 1.1%, relative peak area RSD not more than 0.51%. Compared with the internal standard curve method, the experimental results show that there is no significant difference between the two methods. The superposition method has the advantages of simple, rapid and accurate, which can be used for the rapid quantification of active ingredients in samples