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  • Title: Fluorescence "turn-on" chemosensor for the selective detection of zinc ion based on Schiff-base derivative.
    Author: Hosseini M, Vaezi Z, Ganjali MR, Faridbod F, Abkenar SD, Alizadeh K, Salavati-Niasari M.
    Journal: Spectrochim Acta A Mol Biomol Spectrosc; 2010 Mar; 75(3):978-82. PubMed ID: 20060778.
    Abstract:
    N,N'-phenylenebis(salicylideaminato) (L) has been used to detect trace amounts of zinc ion in acetonitrile-water solution by fluorescence spectroscopy. The fluorescent probe undergoes fluorescent emission intensity enhancement upon binding to zinc ions in MeCN/H(2)O (1:1, v/v) solution. The fluorescence enhancement of L is attributed to the 1:1 complex formation between L and Zn(II), which has been utilized as the basis for selective detection of Zn(II). The linear response range for Zn(II) covers a concentration range of 1.6x10(-7) to 1.0x10(-5)mol/L, and the detection limit is 1.5x10(-7)mol/L. The fluorescent probe exhibits high selectivity over other common metal ions, and the proposed fluorescent sensor was applied to determine zinc in water samples and waste water.
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