Objective To determine simultaneously the contents of ephedrine and pseudoephedrine in ephedra herb and its compound preparations by high-performance liquid chromatography.
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。
Objective To determine simultaneously the contents of ephedrine and pseudoephedrine in ephedra herb and its compound preparations by high-performance liquid chromatography.
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。
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