从大黄中提取大黄素的研究  

Study on the Isolation of Emodin from Chinese rhubarb

作　　者：汪显阳[1] 孙作民[2] 

机构地区：[1]安徽医科大学化学教研室,合肥230032 [2]陕西师范大学化学系

出　　处：《中国现代应用药学》1997年第4期16-18,共3页Chinese Journal of Modern Applied Pharmacy

摘　　要：报道一种能有效提高从大黄中提取大黄素收率的方法。首先用氯仿—酸回流4～5h提取大黄蒽醌，再用pH8．0和pH9．9缓冲溶液提取分离大黄蒽醌中的大黄素。大黄素纯品收率达0．52％。A method of increasing the yield of emodin form rhubarb was reported. First of all, the anthraqulnones were extracted from Chinese rhubarb by refluxing with chloroformacid in 4~5hrs. The emodin was isolated from the anthraquinones eltraction by cxtracting with pH 8.0 and pH 9.9 buffer solutions. The yield of emodin was 0.52%.

关 键 词：大黄 大黄素 提取法 

分 类 号：R284.2[医药卫生—中药学]