Imaging Science and Photochemistry ›› 2013, Vol. 31 ›› Issue (5): 390-395.DOI: 10.7517/j.issn.1674-0475.2013.05.390

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Synthesis of 7-(4-chlorophenyl)azo-10-hydroxybenzoquinoline and Recognition of F-

DONG Zhen-ming1, CUI Xin-xin2, LIU Yao3, WU Xu-jiao1   

  1. 1. School of Chemisty and Chemical Engineering, Shanxi University, Taiyuan 030006, Shanxi, P.R, China;
    2. Shanxi Provincial Chemical Design Institute, Taiyuan 030024, Shanxi, P. R. China;
    3. Environmental Protection Technology Evaluation Center, Taiyuan 030024, Shanxi, P. R. China
  • Received:2013-04-02 Revised:2013-06-21 Online:2013-09-15 Published:2013-09-15

Abstract:

An azo compounds 7-(4-chlorophenyl) azo-10-hydroxybenzoquinoline(compound 1) was synthesized and characterized by UV-Vis. The results show that the compound 1 displays highly selective and spectral changes toward F-. Meanwhile, the colour changes from yellow to red, which were visible to the naked eyes. The method exhibits a dynamic response range for F- from 5.0×10-4 mol/L to 3.0×10-3 mol/L, with a detection limit of 1.9×10-5 mol/L.

Key words: azo compounds, F- detection, intramolecular charge transfer, naked eye recognition

CLC Number: