利用95%的乙醇对蜂胶润喉片中黄酮类化合物进行提取、采用分光光度法进行含量分析，蜂胶润喉片中黄酮类化合物的含量达0.68%。
Flavonoids in propolis throat tablet was extracted by 95% ethanol, and then the content was detected with spectrophotometry. The content of flavonoids in propolis throat tablet was 0.68%.
方法采用分光光度法对银杏叶提取物中的主要成分黄酮类化合物的含量进行测定。
Methods the content of flavonoids, the main effective components in Ginkgo capsule was determined by UV method.
方法采用纯物理的工艺流程过程和紫外线分光光度法从生姜中提取黄酮类物质，对所提取的黄酮类物质进行验证。
MethodsUse purely physical process flow and spectrophotometry to introduce the method of which extracted the flavanone from the gingers, and check the flavanone which extracted from the Lotus rhizome.
应用推荐