构树叶中黄酮类化合物的提取及测定——介绍一个大学综合化学实验

Extraction and Determination of Flavonoids from Broussonetia Papyrifera (L.) Vent. Leaves: A Comprehensive Chemical Experiment for College Students

A new comprehensive chemical experiment for college students is introduced. This experiment is from the achievements of scientific research. It includes obtaining absorption spectrum and calibration curve of Rutin, and ultrasonic-assisted ethanol extraction and spectrophotometric determination of flavonoids from Broussonetia papyrifera (L.) Vent. Leaves. The experiment involves several basic analytical chemistry procedures and the effective components in plant sample are analyzed. Through the experiment, the students' experimental skills, comprehensive and innovative abilities are improved; furthermore, the specialty requirements are satisfied in agriculture or forestry universities. Thus, it is recommended to be included in the comprehensive analytical chemistry laboratory for students of non-chemistry majors.