| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
정밀화학 |
| 제목 |
Anthracene appended guanidine derivative: A fluorescence sensor for pH and water content measurements based on photo-induced electron transfer process. |
| 초록 |
In this study, we developed an anthracene-based fluorescence PET sensor (AFS) for detecting high pH values and water content in organic solvents. A guanidine group as the proton receptor was covalently attached to an anthracene fluorophore to afford highly polar AFS, with reasonable solubility in highly basic solution. The fluorescence of AFS increased almost linearly with decreasing pH from 13.0 to 11.0. AFS also exhibited a fluorescence turn-on response to water in organic solvents such as DMF and CH3CN. The peak intensity of the fluorescence was almost proportional to the amount of water. The detection limits were low enough to detect a trace amount of water content. The mechanism of pH sensing and water sensing was explained based on the resonance hybrid of guanidinum ion (AFSH+) of a protonated AFS to inhibit the PET process. |
| 저자 |
나현규, 임현구, 김형진
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| 소속 |
전남대 |
| 키워드 |
pH sensor; water sensor; fluorescent sensor; high pH value
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| E-Mail |
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