1·Result:Higher ephedrine content was extract by using Suoshi extraction method and the acid water extraction method, which conforms to the industrialization production requirements.
结果：索氏提取法提取和水提取麻黄碱含量较高，适合工业化生产要求。
2·In part III to VI, ephedrine, tyrosine methyl ester, metoprolol, ibuprofen enantiomeric separation with chiral additive as mobile phase by high performance liquid chromatography are presented.
本论文的第三至第六部分介绍了高效液相色谱手性流动相添加剂法拆分麻黄碱、对羟基苯甘氨酸甲酯、美托洛尔、布洛芬对映体。
3·Method With ephedrine as an experimental criterion, the orthogonal design (4 factors and 3 levels) and HPLC were used to optimize the technology of ephedrine extraction from the ephedra stems.
方法采用4因素3水平正交设计法，以麻黄碱为指标，用高效液相色谱法优选提取工艺。