| 초록 |
Herein, we developed novel efficient volatile organic compounds (VOCs) detection system which have been demanded due to their harmful effect on human body. To overcome drawbacks of conventional sensing system, for instance necessity of complex equipment or in-situ signal amplification, fluorometric chemosensor based on chemical reaction between analyte and emissive probe was designed. We synthesized sensing materials sharing triphenyl amine moiety lose their own emission upon excitation only under the existence of chloroform vapor. To evaluate our detection system in point of sensitivity and selectivity, we performed vapor phase detection with several VOCs having similar chemical structure as chloroform. In addition, it was revealed from electron paramagnetic resonance spectroscopy that the detection of chloroform via excitation induced electron transfer from sensing material to chloroform molecule. LC-mass spectroscopy was also performed to figure out generated chemicals. |
