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Zinc ion mediated fluorescence sensor as well as preparation method and application thereof

A fluorescent sensor and zinc ion technology, which is applied in the field of glyphosate detection, can solve the problems of difficult large-scale routine detection, cumbersome sample processing, and high cost, and achieve good selectivity, high product purity, and low cost.

Pending Publication Date: 2022-08-02
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention constructs a zinc ion-mediated fluorescent sensor and uses it for glyphosate detection, which can solve the shortcomings of the existing glyphosate detection methods, such as cumbersome sample processing, long time-consuming, high cost, and difficulty in large-scale routine detection

Method used

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  • Zinc ion mediated fluorescence sensor as well as preparation method and application thereof
  • Zinc ion mediated fluorescence sensor as well as preparation method and application thereof
  • Zinc ion mediated fluorescence sensor as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0038] Embodiment 1: The zinc ion-mediated fluorescence sensor used for glyphosate detection in this embodiment, the preparation method includes the following steps:

[0039] Dissolve the fluorescent probe in organic solvent / HEPES buffer solvent to prepare 3.0×10 -5 mol / L solution, adding inorganic zinc salt, and incubating for 2-4 min to obtain a fluorescence sensor.

specific Embodiment approach 2

[0040] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the fluorescent probe structure is one of the following structures. Others are the same as the first embodiment.

[0041]

specific Embodiment approach 3

[0042] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the fluorescent probe is prepared by the condensation reaction of salicylaldehyde hydrazone and aromatic aldehyde. Others are the same as in the first or second embodiment.

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PUM

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Abstract

The invention discloses a zinc ion-mediated fluorescence sensor as well as a preparation method and application thereof, and relates to the field of glyphosate detection, in particular to a preparation method of the zinc ion-mediated fluorescence sensor and application of the zinc ion-mediated fluorescence sensor in glyphosate detection. The preparation method of the fluorescence sensor comprises the following steps: dissolving the fluorescence probe in an organic solvent / HEPES buffer solvent, and adding inorganic zinc salt for incubation to obtain the fluorescence sensor. The fluorescent sensor can specifically recognize glyphosate, is high in detection specificity, sensitivity and speed, is small in interference of other organophosphorus pesticides, and can realize qualitative and quantitative detection of glyphosate. The method is applied to the field of glyphosate detection, and can overcome the defects that an existing glyphosate detection method is tedious in sample treatment, long in consumed time, high in cost and difficult in large-scale conventional detection.

Description

technical field [0001] The invention relates to the field of glyphosate detection, in particular to a preparation method of a zinc ion-mediated fluorescence sensor and its application in glyphosate detection. Background technique [0002] Glyphosate is a systemic, conductive, and biocidal broad-spectrum organophosphorus herbicide developed by Monsanto in the 1970s. It is widely used in farmland, orchards and forestry. The most widely used herbicide. However, in recent years, studies have shown that glyphosate is toxic to organisms, not only has teratogenic effects, but also has certain toxic and side effects on the heredity, development and reproduction of organisms. Detection of glyphosate residues. [0003] At present, the detection methods of glyphosate residues include chemical analysis, spectrophotometry, high performance liquid chromatography, gas chromatography, chromatography-mass spectrometry, as well as rapid methods such as enzyme-linked immunosorbent assay and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C07D333/54C07D215/12C07C251/24C07C249/02G01N21/64G01N21/78G01N21/33G01N21/31
CPCC09K11/06C07D215/12C07D333/54C07C249/02G01N21/643G01N21/78G01N21/31G01N21/33C09K2211/188C07C251/24
Inventor 喻艳超刘洋吴锦园闫雪雪武文菊由君
Owner HARBIN UNIV OF SCI & TECH