| 초록 |
A fluorescein-dye derivative, fluorescein isothiocyanate (FITC), was ‘assembled’ on amino-silane modified SBA-15 and used as a fluorescent probe to detect fluoride ions in total aqueous media. The ‘assembly’ synthesis method was devoid of tedious purification steps associated with conventional sensors. Moreover, the sensor was highly selective, sensitive, and responsive towards fluoride ions in aqueous media: Its detection limit was 0.02 μM, the lowest value reported for sensors of this nature. Furthermore, we showed that different amino-silane compound could be used to manipulate the detection limit of the sensor. |
