A"Turn-On"Fluorescent Probe for Detection of Perfluorooctane Sulfonate
Perfluorooctane sulfonate(PFOS)is a persistent organic pollutant,which has the characteristics of bio-toxicity,high stability and wide distribution,which is a great threat to human health and safety.Therefore,the de-tection of PFOS is of great significance.In this paper,a tetraphenylvinyl derivative fluorescent probe(TPE-py)was prepared by simple synthesis for the detection of PFOS.The molecular structure,photophysical property,detection effect and sensing mechanism were studied by means of NMR spectroscopy,fluorescence spectrum and ultraviolet-visible absorption spectrum.The results show that TPE-py was successfully prepared and it can detect PFOS quickly and quantitatively based on the properties of electrostatic interaction and aggregation-induced emission by turn-on mode and the detection limit is 0.11 μmol/L.
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