South-Central Minzu University

Xueqing Zeng

Jian Yang

Xiaolong Yang

Hengye Chen

Wanjun Long

Haiyan Fu

Shuo Wang

Yuanbin She

Xiuyun Bai

A method for identifying an origin ofis provided, which belongs to the technical field of chemical analysis and detection, and comprises the following steps: mixingextract with aluminum ion solution, and gold nano-clusters (AuNCs) solution in a solvent, standing for reaction, detecting fluorescence intensity of, comparing the fluorescence intensity ofto be detected with that offrom a target origin, and determining whether they are from a same origin. According to the application, excited-state intramolecular proton transfer effect between 3-hydroxyflavone derivatives ofand aluminum ions is utilized to enhance the fluorescence of 3-hydroxyflavone derivatives, where AuNCs combines aluminum ions to enhance aggregation-induced fluorescence, and reacts with flavonoids to quench their fluorescence; and visual characterization and traceability ofquality are achieved by further comparing obvious rich fluorescence color changes before and after the reaction.

Method for identifying origin of chrysanthemi flos

Growing community of inventors

Yichang, China

Xueqing Zeng