A new isoindoline-based highly selective "turn-on" fluorescent chemodosimeter for detection of mercury ion.
Spectrochim Acta A Mol Biomol Spectrosc
; 178: 198-202, 2017 May 05.
Article
em En
| MEDLINE
| ID: mdl-28189835
ABSTRACT
A new isoindoline-based highly efficient turn-on fluorescent chemodosimeter S with a thioamide functionality as a binding site for selective detection of Hg2+ ion has been developed. The chemodosimeter S showed an extreme selectivity for detection of Hg2+ ion among various two and three-valent metal ions in acetonitrile/water (70/30, v/v). It was found that, in the presence of Hg2+ ion the non-fluorescent chemodosimeter S was efficiently and rapidly desulfurized to the corresponding highly fluorescent amide 1. A good linear relationship was shown between the fluorescence intensity and the concentration of Hg2+ within the range of 0-1µM, with a detection limit of 2.03×10-8M.
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MEDLINE
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En
Ano de publicação:
2017
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Article