A Naphthalimide-Based Fluorescence "Off-on-Off" Chemosensor for Relay Detection of Al³⁺ and ClO.

ABSTRACT: A novel Al³⁺ chemosensor NPA was designed and synthesized on basis of the mechanism of ICT and CHEF. Upon addition of Al³⁺, the probe NPA displayed a bright green fluorescence under UV radiation and visual color change from yellow to colorless. Spectrum titrations showed that NPA could be recognized as a fluorescent turn-on probe with 10^-8 M detection level. The probe was successfully applied in real water sample and test paper. More important, NPA-Al³⁺ complex were used as a fluorescent turn-off probe for the detection of ClO^- with the detection as low as 2.34 × 10^-8 M. The performance of NPA to Al³⁺ and NPA-Al³⁺ complex to ClO^- demonstrated that

SUBMITTER: Sun XJ 

PROVIDER: S-EPMC6687763 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature