期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 262, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2021.120152
关键词
Fluorescent probe; Coumarin; Amine vapors; Turn-on detection; Security ink
类别
资金
- National Natural Science Foundation of China [21702114, 21977060]
- Shandong Provincial Key Research and Development Program, China [2019GSF107078]
- Beijing National Laboratory for Molecular Sciences, Chinese Academy of Sciences [BNLMS20160110]
A new fluorescent sensor BZCO has been developed for the detection of volatile amine vapors. This paper-based sensor exhibits high sensitivity and good selectivity, making it suitable for various applications such as food processing and fluorescent security ink.
Amines are widely used in many fields including agriculture, dyes, medicine and food processing. However, volatile amine vapors could initiate acute and serious damage to human bodies. Thus, highly efficient detection of volatile amine vapors has great importance for academic research as well as practical application. In this work, a turn-on type fluorescent sensor BZCO has been developed, which could be used to detect volatile amine vapors. The portable BZCO sensor can be easily prepared through immersing filter paper into its CH2Cl2 solution and then evaporating it to dryness. This paper-based amine vapor sensor exhibits high sensitivity with a relatively low detection limit at 3.82 ppm. It also has good selectivity for discriminating amine vapors from volatile organic solvents. The detection mechanism has been confirmed by UV-vis spectral analysis. The practical applications of this paper-based BZCO sensor, such as detection of food spoilage and fluorescent security ink, have been investigated. This work has developed a new fluorescent sensor BZCO, which has broad applications in various fields, including amine gas detection, security and anti-counterfeiting materials. (C) 2021 Elsevier B.V. All rights reserved.
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