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作 者:黄靓[1] 王国东[2] 张立国[2] 倪力军[2]
机构地区:[1]天津大学化工学院,天津300072 [2]华东理工大学化学与制药学院,上海200237
出 处:《中成药》2005年第2期131-134,共4页Chinese Traditional Patent Medicine
基 金:国家"十五"科技攻关项目(2001BA701A04)。
摘 要:目的:考察中药提取液浓缩过程中沸点变化与溶剂组成和溶质浓度的关系。方法:常压浓缩4类典型中药材(丹 参、野菊花、大青叶、黄芪),记录不同浓度时的沸点,绘制关联沸点与当量浓度关系曲线。结果:在相同的浓度下,不同类 型药材的沸点升高值不同。结论:在浓缩过程中,要综合考虑溶剂和溶质两者的影响。AIM: To observe the change of boiling point in the concentration of medical herb's extract liquor. METHODS: Extract liquors of typical herb. such as Radix salviae Miltiorrhizae, Flos chrysanthemi indici, Folium isatidis and Radix Astragli, were concentrated in the normal pressure, its boiling-points and mol concentrations were recorded and its curve was depicted. RESULTS: At the same concentration, the boiling points of different kinds of Chinese medicinal material is different. CONCLUSION: In the concentration process of distillation the change of solvent and solute should be taken into account.
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