초록 |
In this work we report an efficient colorimetric chemosensor for the detection of aliphatic amines, ethylamines, using a pyridinium salt (the Zincke salt). Highly sensitive and selective reactivity of the Zincke salt enables colorimetric response of the Zincke salt solution to the ethylamines by showing well-defined visible color changes from colorless to the deep red. The Zincke salt in the solid state exhibits discernable color changes in response to ethylamine gas as well, which makes it possible to demonstrate simple, fast and portable strip- and textile-type ethylamine sensors. |