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A New Fluorescent Sensor for the Determination of Iron(III) in Semi-Aqueous Solution

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URI: http://hdl.handle.net/10498/20392

DOI: 10.1007/s10895-011-1015-z

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2012-A new fluorescent sensor for the determination of iron(III) in semi-aqueous solution.pdf (261.0Kb)
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Author/s
Casanueva Marenco, María JoséAuthority UCA; Fowley, Colin; W. Hyland, Barry; Galindo Riaño, María DoloresAuthority UCA; K. Sahoo, Suban; F. Callan, John
Date
2012-01
Department
Química Analítica
Source
Journal of Fluorescence (2012) 22:795–798
Abstract
A simple fluorescent sensor 1 has been developed for the recognition of Fe(III) in semi-aqueous solution at pH 7.0. The sensor, containing two Schiff base type receptors directly connected to naphthalene fluorophores, shows a concentration dependent decrease in emission intensity upon Fe(III) addition. The sensor was selective for Fe(III) over other metal ions and can measure Fe(III) ion concentration between 0.05 and 0.12 mM. The binding stoichiometry was established as 1:1 (host: guest) with a binding constant (Logβ) of 4.01. Furthermore, the addition of Fe(III) to a solution of 1 caused a colour change from light yellow to colourless meaning 1 is also capable of detecting Fe(III) by the naked eye.
Subjects
Schiff base; Fluorescence; Sensor; Iron(III)
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  • Artículos Científicos [4216]
  • Artículos Científicos INBIO [242]
  • Articulos Científicos Quim. Ana. [129]
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
This work is under a Creative Commons License Attribution-NonCommercial-NoDerivatives 4.0 Internacional

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