Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 209, Issue -, Pages 664-669Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2014.12.043
Keywords
Dual-model; Formaldehyde; Fluorescent probe; Off-on; Quantitative detection; Water
Funding
- National Natural Science Foundation of China [50903075]
- New Teachers' Joint Fund for Doctor Stations from Ministry of Education of the People's Republic of China [20114101120003]
- Zhengzhou University
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A dual-model fluorescent probe for formaldehyde has been developed. With excitation at 365 and 400 nm respectively and upon addition of formaldehyde, the fluorescent probe displays off-on fluorescence responses at 415 and 505 nm. Formaldehyde can be detected quantitatively in the concentration range from 0 to 2.7 x 10(-2) M and the detection limit on fluorescence response of the probe can be as low as 6 mu M. The proposed method was successfully employed for preliminary application in several commercially available foods. (C) 2014 Elsevier B.V. All rights reserved.
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