A Simplified and Turn-on Fluorescence Chemosensor Based on Coumarin Derivative for Detection of Aluminium(III) Ion in Pure Aqueous Solution

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  • YAN Li-Qiang
    College of Chemistry and Chemical Engineering, Southeast University
  • CUI Mei-Fang
    College of Chemistry and Chemical Engineering, Southeast University
  • ZHOU Yan
    College of Chemistry and Chemical Engineering, Southeast University
  • MA Yun
    College of Chemistry and Chemical Engineering, Southeast University
  • QI Zheng-Jian
    College of Chemistry and Chemical Engineering, Southeast University

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Abstract

A novel chemosensor L based on coumarin Schiff-base was synthesized and investigated. Sensor L showed remarkable selectivity for Al3+ in Tris–HCl aqueous buffer solution (pH 7.2), and the selectivity was not affected by the presence of a large excess of other competitive ions. The sensor responded rapidly to Al3+ in aqueous solutions with a 2:1 stoichiometry. Meanwhile, it indicated significant improvement of quantum efficiency and ideal fluorescent lifetime.

Journal

  • Analytical Sciences

    Analytical Sciences 31 (10), 1055-1059, 2015

    The Japan Society for Analytical Chemistry

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