| 초록 |
Several electron donors (TPCAs) are designed to devise a novel detection system for toxic organochlorides containing tri-chlorinated carbons, and the detection mechanism of the devised sensor system is systematically identified by EPR measurement and the analysis of solution after the detection of chloroform, which is used as a model compound. Since the detection system simultaneously utilizes the radical-generation tendency and the low LUMO level of the tri-chlorinated carbon, it provides high selectivity against most of the common organic compounds including other organochlorides containing mono- or di-chlorinated carbons. In addition, the detection system exhibits immediate sensing capability because only electron transfer and radical reaction are involved in the detection process. Finally, when diphosgene is detected with the devised sensing platform, a noticeable change in fluorescence intensities can be identified within 5 s even for a diphosgene concentration of less than 1 ppm. |
