writer：Zhou, W.; Dong, H.; Yan, H.; Shi, C. X.; Yu, M. M.; Wei, L. H.; Li, Z. X.
keywords：Fluorescent probe; Off-on; Quantitative detection; Water
source：期刊
specific source：Sens. Actuators B, 2015, 209, 664–669
Issue time：2015年
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.