论文部分内容阅读
利用紫外分光光度法测定腺点金丝桃中总黄酮的含量,根据黄酮的不同提取方法:1、醇提法.2、碱提酸沉法.3醇粗提后碱提酸沉法[1].确定了提取总黄酮的最佳方法,得到了满意的结果.
The content of total flavonoids in Hypericum perforatum was determined by UV spectrophotometry. According to the different extraction methods of flavonoids: 1, alcohol extraction.2, alkali extraction and acid precipitation.3. The best method for extracting total flavonoids was determined, and satisfactory results were obtained.