Jingyu Zhang and Wei Guo
Chem. Commun., 2014,50, 4214-4217
DOI:
10.1039/C3CC49605H,
Communication
A fluorescent off–on probe for H2S was exploited by coupling the azide-based strategy with the excited-state intramolecular proton transfer (ESIPT) sensing mechanism, which exhibits a considerably high fluorescence enhancement (1150-fold), an extremely low detection limit (0.78 nM), and a relatively fast response time (3–10 min) as well as excellent selectivity.