Fluorescent detection of chemical warfare agents: functional group specific ratiometric chemosensors.

TitleFluorescent detection of chemical warfare agents: functional group specific ratiometric chemosensors.
Publication TypeJournal Article
Year of Publication2003
AuthorsZhang, S-W, Swager, TM
JournalJournal of the American Chemical Society
Volume125
Pagination3420–1
Date Publishedmar
ISSN0002-7863
KeywordsChemical Warfare Agents, Chemical Warfare Agents: analysis, Fluorescence, Fluorescence: methods, Fluorescent Dyes, Fluorescent Dyes: chemistry, Indicators and Reagents, Indicators and Reagents: chemistry, Organophosphorus Compounds, Organophosphorus Compounds: analysis, Pyridines, Pyridines: chemistry, Spectrometry
Abstract

Indicators providing highly sensitive and functional group specific fluorescent response to diisopropyl fluorophosphate (DFP, a nerve gas (G-agent) simulant) are reported. Nonemissive indicator 2 reacts with DFP to give a cyclized compound 2+A- that shows a high emission due to its highly planar and rigid structure. Very weak emission was observed by the addition of HCl. Another indicator based on pyridyl naphthalene exhibits a large shift in its emission spectrum after reaction with DFP, which provides for quantitative ratiometric detection.

URLhttp://www.ncbi.nlm.nih.gov/pubmed/12643690
DOI10.1021/ja029265z