A minimalist fluorescent MOF sensor array for Baijiu identification
Xiaofang Liu, Jing Zhang, Yi Ma, Dong Zhao, Danqun Huo, Huibo Luo, Jiawei Li, Xiaogang Luo, Changjun Hou
Abstract
, which were accompanied by various changes in the fluorescence intensity. For each analyte, a unique fluorescence fingerprint and heat map would be formed, which could be discriminated by pattern recognition. With this method, 11 kinds of organic molecules were identified accurately. A good stepwise bilinear function between the fluorescence intensity and concentrations of ferulic acid was obtained at 0.2-3.13 μM and 6.25-100 μM. Crucially, 16 kinds of Baijius of different brands were accurately identified with an accuracy of 100%. The sensor array showed the advantages of strong maneuverability and fast response, exhibiting good application value in Baijiu detection.