Fluorescence sensing-based glyphosate detection method and application
A fluorescent sensing and fluorescent sensor technology, applied in the field of glyphosate detection, can solve the problems of difficult large-scale routine detection, high equipment and personnel requirements, cumbersome sample processing, etc., and achieve good anti-interference ability and sensitive detection process Fast, easy-to-build effects
Pending Publication Date: 2022-07-26
HARBIN UNIV OF SCI & TECH
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Problems solved by technology
[0005] The present invention uses a fluorescent sensor for glyphosate detection, which can solve the shortcomings of the existing glyphosate detection methods, such as cumbersome sample processing, high requirements for equipment and personnel, and difficulty in large-scale routine detection
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specific Embodiment approach 1
[0033] Embodiment 1: The preparation method of the fluorescence sensor for glyphosate detection in this embodiment includes the following steps:
[0034] In a buffered solution of organic solvent, the fluorescent probe was incubated with zinc acetate to form 3.0 × 10 -5 mol / L solution, the fluorescence sensor is obtained.
specific Embodiment approach 2
[0035] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the structure of the fluorescent probe is as follows. Others are the same as the first embodiment.
[0036]
specific Embodiment approach 3
[0037] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the fluorescent probe is prepared by the condensation reaction of 1-benzothiophene-2-carboxaldehyde and 2-hydrazinobenzothiazole. Others are the same as in the second embodiment.
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The invention discloses a glyphosate detection method based on fluorescence sensing and application, and relates to the field of pesticide glyphosate detection, in particular to a preparation method of a fluorescence sensor and application of the fluorescence sensor in glyphosate detection. The method aims to simplify glyphosate detection steps, reduce detection cost and further realize real-time, large-scale and conventional detection of glyphosate. The method comprises the following steps: in a buffer solution of an organic solvent, incubating the fluorescent probe and zinc acetate to obtain the fluorescent sensor. The fluorescent sensor prepared by the invention shows good selective recognition capability on glyphosate, shows relatively good anti-interference capability on coexisting organophosphorus pesticides, is high in detection sensitivity, and can realize qualitative and quantitative detection of glyphosate. The method can be applied to the field of glyphosate 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 conductive, biocidal herbicide that is very effective against perennial root weeds and is widely used in rubber, mulberry, tea, orchards and sugarcane fields. Its herbicidal mechanism is mainly to inhibit the enolacetonyl shikimidine phosphate synthase in plants, thereby inhibiting the conversion of shikonin to phenylalanine, tyrosine and tryptophan, disturbing protein synthesis and causing plant death. . Compared with other herbicides, glyphosate has the advantages of high efficiency, broad spectrum, non-selectivity, and easy decomposition in the environment. It is widely used in agriculture, forestry, aquatic products and other fields. varieties of pesticides. [0003] The long-term and extensive use of glyphosate has c...
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IPC IPC(8): G01N21/64C07D417/12C09K11/06
CPCG01N21/643C07D417/12C09K11/06G01N2021/6432C09K2211/1037C09K2211/1092
Inventor 喻艳超陈心仪李艳萍巴新宇刘洋
Owner HARBIN UNIV OF SCI & TECH