An Ensemble-Based Fluorescent Probe for Real-Time and High Sensitive Detection of Hypochlorite
A novel fluorescent probe TS1 for real-time monitoring of hypochlorite was reported.The introduction of Cu2+could lead to the formation of stable complex TS1-Cu and simultaneous remarkable fluorescence quenching.Next,"off-on"fluorescence changes of TS1-Cu were proceeded by the subsequent addition of hypochlorite,which induced the hydrolytic cleavage of the Schiff base in TS1 and the transformation to strongly fluorescent aldehyde.TS1-Cu could recognize hypo-chlorite through an instantaneous marked fluorescence enhancement with the detection limit as low as 120 nmol/L.Further-more,the sensitive and rapid detection of hypochlorite with TS1-Cu for the practical application was also performed in com-mercial disinfectant samples.
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