31results about How to "Realize differentiated detection" patented technology

The invention discloses a light-emitting probe based on a europium-based metal-organic framework and a preparation method and application thereof, and belongs to the technical field of fluorescent sensing materials and food safety detection.The light-emitting probe is a europium-based metal-organic framework material, the chemical formula of the light-emitting probe is Eu (phen) (5-hipa) NO3 <->, phen is 1, 10-phenanthroline ligand, 5-hipa is 5-hydroxyisophthalic acid ligand, and the molecular weight of the Eu (phen) (5-hipa) NO3 <-> is larger than that of Eu (phen) (5-hipa) NO3 <->. The light-emitting probe takes a binuclear Eu cluster as a metal center. According to the luminous probe based on the europium-based metal-organic framework, the synthesized europium-based metal-organic framework material can be used as a bifunctional fluorescent probe, and specific recognition and quantitative detection of carbaryl and enrofloxacin are realized in an aqueous solution; the method has the remarkable effects of high sensitivity, strong anti-interference capability, recyclability and simplicity, convenience and rapidness in operation.