Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (3): 489-497.DOI: 10.19894/j.issn.1000-0518.210232

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Fluorescent Probe for Rapid Detection of H2S with Benzimidazole Naphthalimide as the Core

Cheng-Lu ZHANG(), Yi-Ming WANG, Zhi-Xuan REN, Lu LI, Yu-Qing LI, Fu-Lu SONG   

  1. College of Chemistry and Chemical Engineering,Liaoning Normal University,Dalian 116029,China
  • Received:2021-05-13 Accepted:2021-07-26 Published:2022-03-01 Online:2022-03-15
  • Contact: Cheng-Lu ZHANG
  • About author:zhangchenglu@lnnu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21641012)

Abstract:

A naphthalimide derivative 3-azido-7H-benzo[de]benzo[4,5]imidazole[2,1-a] (DBNG) was synthesized starting from 1,8-naphthalenedicarboxylic acid anhydride isoquinoline and characterized by using infrared spectroscopy (IR) and nuclear magnetic resonance spectroscopy (NMR). It was used as a small molecule fluorescent probe to detect H2S. The results show that probe DBNG can detect H2S with high selectivity and rapid fluorescence response, and exhibits good fluorescence performance in a wide pH range with a detection limit as low as 0.82 μmol/L. It can be used to detect actual water samples with H2S and has been successfully applied to cell imaging experiments.

Key words: Naphthalimide, Hydrogen sulfide, Azide, Fluorescent probe

CLC Number: