梯度洗脱法测定麻黄及其复方制剂中麻黄类生物碱的含量
伪麻黄碱,,高效液相色谱法;梯度洗脱;麻黄碱;伪麻黄碱,1仪器与试药,2方法和结果,3讨论,参考文献:
摘要:目的 用反相高效液相色谱梯度洗脱法测定麻黄及其复方制剂中麻黄类生物碱的含量。方法 用Agilent DAD 二元泵高效液相色谱仪,色谱柱Eclipse SB C18(4.6 mm×150 mm,5 μm),检测波长210 nm,流速1.0 mL/min,流动相为甲醇-磷酸缓冲盐溶液梯度洗脱。 结果 麻黄碱和伪麻黄碱在进样量分别为1.01~10.1 μg、0.97~9.7 μg范围内进样量与峰面积呈良好的线性关系。该方法麻黄碱平均回收率为100.14%(n=9),伪麻黄碱平均回收率为99.16%(n=9)。结论 方法简便,专属性好,可以用于麻黄药材及其复方制剂的含量测定。关键词:高效液相色谱法;梯度洗脱;麻黄碱;伪麻黄碱
Detection of ephedrine and pseudoephedrine in ephedra herb and its compound preparations by highperformance liquid chromatography
HUO Wuzhen, JIANG Hongyu, ZHU Shengshan
(Guangdong College of Pharmacy, Guangzhou 510240, China)
Abstract: Objective To determine simultaneously the contents of ephedrine and pseudoephedrine in ephedra herb and its compound preparations by highperformance liquid chromatography. Method The detection was performed on a reversedphase C18 column(4.6 mm ×150 mm ......
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