| Literature DB >> 26992539 |
Jessica Orrego-Hernández1, Nelson Nuñez-Dallos1, Jaime Portilla2.
Abstract
A new fluoroionophore PyHC bearing 2-pyridylhydrazone and 7-hydroxycoumarin moieties for selective detection of Mg(2+) was synthesized and characterized. This chemosensor exhibited "turn-on" fluorescence behavior and was sensitive to Mg(2+) concentrations as low as 105 nmol L(-1) in ethanol-water solution. Detailed spectroscopic studies revealed the binding mode of a 1:1 complex between PyHC and Mg(2+) that leads to a fluorescence enhancement.Entities:
Keywords: Chemosensor; Fluorescence; Mg(2+); Pyridyl-hydrazono-coumarin; Schiff base
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Year: 2016 PMID： 26992539 DOI： 10.1016/j.talanta.2016.02.020
Source DB: PubMed Journal: Talanta ISSN： 0039-9140 Impact factor: 6.057