Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (12): 2480.doi: 10.7503/cjcu20190366

• Analytical Chemistry • Previous Articles     Next Articles

Benzimidazole-Derived Fluorescence Enhancement Probe for Visual Detection of HClO

Yong ZHANG(),Cheng SHEN,Zhirong XING,Guiqi CHEN,Zi LU,Zhibing HOU,Xuemei CHEN   

  1. College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, Hubei Polytechnic University, Huangshi 435003, China
  • Received:2019-07-01 Online:2019-12-04 Published:2019-12-04
  • Contact: Yong ZHANG E-mail:zy0340907@163.com
  • Supported by:
    ? Supported by the National Natural Science Foundation of China(51173060);the Opening Foundation of Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, China(2017108);the Key Program of Hubei Polytechnic University, China(15xjz01A)

Abstract:

A novel benzimidazole-derived fluorescence enhancement probe 2-{[4-(1H-benzo[d]imidazol-2-yl)benzylidene]amino}-3-aminoma-leonitrile(ZY12) was synthesized, and its recognition of HClO was researched with spectral methods. The results showed that ZY12 demonstrated relatively high selectivity and sensitivity to ClO -. It had quick response and strong anti-interference ability. Upon addition of ClO - to ZY12 solution, the fluorescence intensity of reaction system increased with the increasing concentration of ClO -, accompanied with fluorescence color change from faint blue to bright blue, realizing the visual detection of ClO -. ZY12 could quantitatively detect ClO - at concentrations ranging from 1.8×10 -6—3.4×10 -5 mol/L with a detection limit of 2.8×10 -7 mol/L. ZY12 was used to determine ClO - in various water samples, and it could also be applied to intracelluar ClO - imaging in living HeLa cells.

Key words: Hypochlorous acid, Fluorescent probe, Visual detection, Fluorescence imaging

CLC Number: 

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