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A Fluorescence-Enhanced Naphthalimide Fluorescent Probe With CF3 Group to Detect Formaldehyde and Its Application in
Xiaoming Wu1, Leyuan Ding1, Shaoxiang Yang1
1Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, China.
Abstract:
Trifluoromethyl's outstanding stability and strong electronegativity led to the development of a fluorescence-enhanced probe (CF3-P) for formaldehyde (FA) detection. In aqueous solution, the CF3-P can react nucleophilically with FA, and the fluorescence intensity at 544 nm progressively rises and has a strong linear relationship. The CF3-P solution turned from colorless to light yellow when exposed to 365 nm UV light, as the amount of FA increased. The spiking recovery rate of the CF3-P is good. Furthermore, it is used to identify exogenous FA in mini-bok choy. The root's R + G/B analysis shows a linear relationship with the FA concentration, and the colorimetric analysis of the middle portion and the root is more evident. As a result, the CF3-P is a practical instrument for FA detection.
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