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Double-colorimetric double-fluorescent phenanthroimidazole probe as well as preparation method and application thereof

A phenanthroimidazole and dual-fluorescence technology, which is applied in the fields of fluorescence/phosphorescence, chemical instruments and methods, and luminescent materials, can solve the problems of inability to realize quantitative detection, single response object of colorimetric probe, and slow response speed, etc. Qualitative and quantitative detection, high sensitivity, rapid response effect

Pending Publication Date: 2020-06-23
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The present invention aims to solve the technical problems that the existing colorimetric probes have a single response object, slow response speed, and cannot realize quantitative detection, and provide a dual-colorimetric, dual-fluorescent phenanthroimidazole probe and its preparation method and application

Method used

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  • Double-colorimetric double-fluorescent phenanthroimidazole probe as well as preparation method and application thereof
  • Double-colorimetric double-fluorescent phenanthroimidazole probe as well as preparation method and application thereof
  • Double-colorimetric double-fluorescent phenanthroimidazole probe as well as preparation method and application thereof

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specific Embodiment approach 1

[0040] Specific embodiment one: the double colorimetric double fluorescence phenanthroimidazole probe of this embodiment, its structural formula is:

[0041]

specific Embodiment approach 2

[0042] Specific embodiment two: the method for preparing the double colorimetric double fluorescent phenanthroimidazole probe described in specific embodiment one, carries out according to the following steps:

[0043] Add 2-(4-aminophenyl)phenanthroimidazole and m-phthalaldehyde into the organic solvent I according to the ratio of substance molar ratio (1~6):1, under the condition of temperature 20~80℃ React for 1 to 8 hours, during the reaction, solids are precipitated; after the reaction, filter, wash the filter cake with organic solvent II and distilled water successively, and dry the filter cake to obtain a crude product; recrystallize the crude product with organic solvent III to obtain double ratio Chromatic dual fluorescent phenanthroimidazole probe.

specific Embodiment approach 3

[0044] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the organic solvent I is glacial acetic acid, methanol, ethanol, N,N-dimethylformamide, benzene or toluene; others are the same as Embodiment 2 same.

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Abstract

The invention discloses a double-colorimetric double-fluorescent phenanthroimidazole probe as well as a preparation method and application thereof, and relates to a phenanthroimidazole probe as well as a preparation method and application thereof. The technical problems that an existing colorimetric probe is single in response object and low in response speed, and quantitative detection cannot beachieved are solved. The preparation method of the double-colorimetric double-fluorescent phenanthroimidazole probe the structural formula of which is shown in the specification, comprises the following steps: adding 2-(4-aminophenyl) phenanthroimidazole and m-phthalaldehyde into an organic solvent I for reaction, and filtering, washing, drying and recrystallizing separated solids to obtain the double-colorimetric double-fluorescent phenanthroimidazole probe. The probe is used for detecting Cu<2+> and Ag<+> in a solution. Qualitative detection can be achieved through a colorimetric method or afluorescence method, and quantitative detection can be achieved through a fluorescence standard curve method. The detection response time is 2-3 min, the detection concentration reaches the nM level,and the method can be used in the field of industrial wastewater and drinking water detection.

Description

technical field [0001] The invention relates to a phenanthroimidazole probe, a preparation method and an application. Background technique [0002] Cu 2+ and Ag + are common heavy metals. The presence of trace amounts is harmless to the human body, but excessive ions will directly cause harm to the human body. Cu 2+ It will inhibit nitrite reductase, affect the absorption and utilization of nitrogen, and eventually lead to physiological obstruction, inhibition of development, and even death. Ag + It can produce toxicity in biological aggregation, and it can directly interact with active groups such as amines, imidazoles and carboxylic acids in the human body and inactive sulfhydryl enzymes, thereby endangering the physiological environment of the human body. At the same time, Ag+ is also one of the common heavy metals in the living environment. Cu 2+ and Ag + Both heavy metal ions are also the main metals of antibacterial, antiviral and antitumor drugs. According t...

Claims

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Application Information

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IPC IPC(8): C07D235/02C09K11/06G01N21/64
CPCC07D235/02C09K11/06G01N21/643G01N21/6447C09K2211/1044C09K2211/1014G01N2021/6432
Inventor 赵冰孔祥东李安然卜凡强阚伟王丽艳孙立
Owner QIQIHAR UNIVERSITY
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