methods: cortex fraxini total coumarin was involved in a randomized, double-blind, placebo parallel control, dosage-reaction design and superiority test.
方法:采用随机、双盲、安慰剂平行组对照、剂量反应研究设计和优效性检验。
in addition, scutellaria and cortex fraxini were selected to design formulation ii whose ratio was7:3.
另外,选用黄芩与秦皮两种药物设计配方二,配比为7:3。
by using standard addition method and standard curve method, the quantity of aesculin in cortex fraxini was determined to be 0.10% and the aesculetin was 0.36%, respectively.