Journal
MICROCHEMICAL JOURNAL
Volume 168, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.microc.2021.106334
Keywords
Quinoline; Colorimetric; Turn-off; Fluorescent chemosensor; Phosgene
Categories
Funding
- Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Diseases (Hubei Minzu University) [PT022020]
- National Natural Science Foundation of China [21606145]
- 111 Project [D20015]
- Research Foundation of Yichang Science and Technology Bureau [A19-302-04, A21-3-019]
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This study successfully constructed a fluorescent chemosensor based on Q-1 probe, which can rapidly and accurately detect phosgene, and prepared test paper for detection of phosgene gas.
Phosgene (COCl2) is a kind of extreme poisonous and colorless gas, causing many serious health problems. It's an urgent requirement to develop a convenient and efficient analytical methods for detection of phosgene in environmental systems. In this work, we have constructed turn-off fluorescence signals of phosgene fluorescent chemosensor Q-1 based on quinoline as fluorophores and oxime as recognition group, which displayed a low detection limit (LOD = 5.55 & times; 10-6 M) and rapid response (<1 min). The structure of the probe Q-1 was analyzed by NMR and X-ray. Q-1 can be used to clearly distinguish phosgene under 365 nm UV lamp and visible light. Moreover, the test paper with Q-1 was prepared for detection of phosgene gas in air.
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