Abstract
Because of the current shortage of first-generation phosgene sensors, increased attention has been given to the development of fluorescent and colorimetric based methods for detecting this toxic substance. In an effort focusing on this issue, we designed the new, second-generation phosgene chemosensor 1 and demonstrated that it undergoes a ring-opening reaction with phosgene in association with color and fluorescent changes with a detection limit of 3.2 ppb. Notably, in comparison with the first-generation sensor RB-OPD, 1 not only undergoes a much faster response toward phosgene with an overall response time within 2 min, but it also generates no byproducts during the sensing process. Finally, sensor 1 embedded nanofibers were successfully fabricated and used for accurate and sensitive detection of phosgene.
| Original language | English |
|---|---|
| Pages (from-to) | 3382-3386 |
| Number of pages | 5 |
| Journal | Analytical Chemistry |
| Volume | 90 |
| Issue number | 5 |
| DOIs | |
| State | Published - 6 Mar 2018 |
Bibliographical note
Funding Information:J.Y. acknowledges a grant from the National Creative Research Initiative programs of the National Research Foundation of Korea (NRF) funded by the Korean government (MSIP; No. 2012R1A3A2048814). M.H.K. thanks to the National Research Foundation of Korea (NRF) funded by the Korean government (MSIP; No. 2016R1D1A1B03934962). X.Z. acknowledges the Natural Science Foundation of China (NSFC. 21662037, 21762045), the Youth Science Foundation of Jilin Province (20160520003JH), for supporting this work. Mass spectral data were obtained from the Korea Basic Science Institute (Daegu) using a Jeol JMS 700 high-resolution mass spectrometer.
Publisher Copyright:
© 2018 American Chemical Society.