Chinese Journal of Applied Chemistry ›› 2018, Vol. 35 ›› Issue (10): 1271-1276.DOI: 10.11944/j.issn.1000-0518.2018.10.170386

• Full Papers • Previous Articles    

Synthesis and Characterization of Coumarin Based Aluminum Ion Fluorescence Chemosensor

YANG Wensheng(),YANG Wan,MU Jianying,MA Yajun   

  1. School of Chemistry and Chemical Engineering,Yulin University,Yulin,Shaanxi 719000,China
  • Received:2017-10-27 Accepted:2018-02-26 Published:2018-10-01 Online:2018-10-09
  • Contact: YANG Wensheng
  • Supported by:
    Sopported by the National Natural Science Foundation of China(No.21763030), the Dr Scientific Research Start-Up Foundation of Yulin College(No.16GK14)

Abstract:

For the sake of convenient and quick detection of aluminum ion, an aluminum ion fluorescent chemosensor was synthesized from 7-hydroxyl coumarin. Its structure was verified by mass spectrometry and nuclear magnetic resonance spectrum. The properties and structure of fluorescence chemosensor were characterized by mass spectrometry(MS), nuclear magnetic resonance spectroscopy(NMR), UV-vsisible absorption spectrum(UV-Vis). The results reveal that the sensor has good selectivity toward aluminum ion. The limit of detection is 8.5×10-8 mol/L, and the identification process is reversible. The Job's plot indicates that the sensor and aluminum ion forms stable complex in 1:1 ratio. Therefore, this fluorescent chemosensor has potential in real time monitoring aluminum ion in biological and environmental applications.

Key words: coumarin, fluorescence chemosensor, aluminum ion