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- W4283733384 abstract "The amine vapour produced by microorganisms is an important indicator of food spoilage. Amines are also ubiquitous in the chemical industry. The development of molecule-based ion sensors has been a pivotal issue that is currently receiving considerable attention. In this work, a new pyrylium salt-based fluorescent probe MTPY has been developed as a rapid, highly sensitive, and selective sensor for methylamine vapour. MTPY exhibits an obvious fluorescence response from yellow to cyan towards CH3NH2 vapour. The calibration curve of titration analysis shows a linear relationship of the fluorescence intensity at 514 nm versus the methylamine concentration in the range of 0.1-2 ppm. In addition to the linearity (R2 = 0.974) and short response time with a low detection limit (2.6 ppt, 8.4 × 10-8 M), the sensing mechanism was traced using mass spectrometry." @default.
- W4283733384 created "2022-07-01" @default.
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- W4283733384 date "2022-01-01" @default.
- W4283733384 modified "2023-10-16" @default.
- W4283733384 title "A pyrylium salt-based fluorescent probe for the highly sensitive detection of methylamine vapour" @default.
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- W4283733384 doi "https://doi.org/10.1039/d2an00911k" @default.
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