South-central Minzu University

Wanjun Long

Jian Yang

Xiaolong Yang

Hengye Chen

Haiyan Fu

Liuna Wei

Shuo Wang

Siyu Wang

Xueqing Zeng

Yuanbin She

Xiuyun Bai

Disclosed is a method for visually identifying quality of Lilii Bulbus, including: uniformly mixing an extracting solution of a Lilii Bulbus sample to be detected with gold-silver nanoclusters, standing the mixed extracting solution for reaction, and realizing visual identification of Lilii Bulbus quality according to information of color or information of fluorescence intensity of a detection system obtained after the reaction and response difference of the color or fluorescence of Lilii Bulbus samples with different quality. Compared with that existing detection method based on chromatography and the like, the method provided by the present application has the advantages of high stability, fast response, easy operation and portable devices in addition to a broad application prospect for industrial production.

Method for visually identifying quality of Lilii Bulbus

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

Yongzhou, China

Wanjun Long