A reusable test paper based on a simple salicylaldehyde derivate for the real-time detection of phosgene in gas phase

Jinbiao Zhu; Xinyue Mu; Shiqing Zhang; Liqiang Yan; Xiongzhi Wu

doi:10.1016/j.saa.2021.119485

A reusable test paper based on a simple salicylaldehyde derivate for the real-time detection of phosgene in gas phase

Spectrochim Acta A Mol Biomol Spectrosc. 2021 Apr 15:251:119485. doi: 10.1016/j.saa.2021.119485. Epub 2021 Jan 16.

Authors

Jinbiao Zhu¹, Xinyue Mu¹, Shiqing Zhang¹, Liqiang Yan², Xiongzhi Wu³

Affiliations

¹ College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, PR China.
² College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, PR China. Electronic address: liqiangyan@glut.edu.cn.
³ College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, PR China. Electronic address: 2004046@glut.edu.cn.

PMID: 33503562
DOI: 10.1016/j.saa.2021.119485

Abstract

Phosgene is an important organic activity intermediate as well as a poisonous gas. However, the widespread use and abuse of phosphene brings potential risks to public safety. So it is very important to detect phosgene quickly and reliably. Up to now, a lot of chemical sensors based on organoluminescent groups have been reported to monitor phosgene. However, most of them have complex molecular structures and cannot be recycled during detection. Herein, we developed a simple and effective fluorescent chemosensor using 5-chlorsalicylaldehyde as luminophor and azanol as recognition site. It exhibited significant fluorescence enhancement, excellent specificity and sensitivity. More importantly, the reusable test paper prepared by this chemosensor has been successfully used in the point-of-care testing of gaseous phosgene.

Keywords: Fluorescence detection; Hydroxylamine; Phosgene; Reversible detection; Salicylaldehyde; Test paper.