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• W4319724871 abstract "Abstract In the present study, a new colorimetric and fluorescent turn-on chemosensor based on ((E)-1-((p-tolylimino)methyl)naphthalen-2-ol) SB was designed and characterized by FT-IR and 1 H NMR. The photophysical properties of SB were investigated by fluorescence spectroscopy. SB showed an excellent colorimetric (yellow to yellowish brown) and fluorescent turn-on sensing response to Cu 2+ in MeOH/Water (10/90, v/v) media. The turn-on response was observed due to inhibition of the photo-induce electron transfer (PET) process. The sensing mechanism of SB toward Cu 2+ (2:1) was verified by job's plot, FT-IR, 1 H NMR titration and DFT studies. The limit of detection (LOD) was calculated to be 0.0025 µg ml − 1 (0.0025ppm). This LOD value is lower than the tolerable limit for Cu 2+ in drinking water set by the US Environmental Protection Agency (1.3 ppm). Furthermore, the test strip containing SB has also exhibited good sensitivity and selectivity of Cu 2+ in solution medium as well as when supported on solid medium. All these results confirm that SB is a highly sensitive, selective and facile probe for the recognition of trace amounts of Cu 2+ with potential sensing applications." @default.
• W4319724871 created "2023-02-11" @default.
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• W4319724871 date "2023-02-09" @default.
• W4319724871 modified "2023-10-17" @default.
• W4319724871 title "An ultrasensitive colorimetric and fluorescent turn-on chemosensor based on Schiff base for the detection of Cu 2+ in the aqueous medium" @default.
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• W4319724871 doi "https://doi.org/10.21203/rs.3.rs-2557742/v1" @default.
• W4319724871 hasPublicationYear "2023" @default.
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