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- W3152501960 endingPage "109374" @default.
- W3152501960 startingPage "109374" @default.
- W3152501960 abstract "Boronic acids have been widely employed as important intermediates for various organic syntheses and reversible receptors for glucose and carbohydrates. We developed a new ratiometric fluorescent chemodosimeter for Hg2+ based on an irreversible reaction of phenylboronic acid with Hg2+. The fluorescent chemodosimeter (1) bearing a phenylboronic acid as a reaction site showed a selective and sensitive ratiometric signal behavior to low concentrations of Hg2+ ions in aqueous solutions containing 1% CH3CN. The ratiometric signaling was not considerably inhibited by coexisting other metal ions. The detection limit was measured to be 7.0 nM for Hg2+ based on the linear ratiometric signal to the nanomolar concentration (0–500 nM) of mercury ions. The signal mechanism study revealed that 1 reacted with Hg2+, providing covalent product of mercury ion (3) by replacement reaction of the boronic group of 1 with Hg2+, which exhibited fluorescent spectrum changes. The reaction kinetic study suggested that the rate law of the reaction is 1st order in Hg2+ and 1st order in the probe, and 2nd order overall. Real world application of the fluorescent chemodosimeter was demonstrated by quantification of Hg2+ ions in groundwater and tap water samples spiked with known amounts of Hg2+ ions." @default.
- W3152501960 created "2021-04-26" @default.
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- W3152501960 date "2021-07-01" @default.
- W3152501960 modified "2023-10-11" @default.
- W3152501960 title "Ratiometric fluorescent detection of Hg(II) by amino-acid based fluorescent chemodosimeter using irreversible reaction of phenylboronic acid with mercury species" @default.
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- W3152501960 doi "https://doi.org/10.1016/j.dyepig.2021.109374" @default.
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