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A fluorescent probe for detecting the pesticide dodine in water and its detection method

A fluorescent probe and water detection technology, which is applied in the field of fluorescent probes and its detection, can solve problems such as poisoning, and achieve the effects of simple sample processing, high sensitivity, and convenient operation

Active Publication Date: 2022-02-01
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, Dodine also has some potential hidden dangers, such as: poisoning after ingestion, inhalation or skin absorption, and it is a suspected carcinogen

Method used

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  • A fluorescent probe for detecting the pesticide dodine in water and its detection method
  • A fluorescent probe for detecting the pesticide dodine in water and its detection method
  • A fluorescent probe for detecting the pesticide dodine in water and its detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: A kind of fluorescent probe that detects pesticide Duogudine in water, the preparation method is as follows:

[0033] 1) Take the ten-membered melon ring, and then add water to dissolve it to obtain solution A;

[0034] 2) Take N-(3-aminopropyl)-4-(pyrene-1-yl)butyramide, and then dissolve it in water to obtain solution B;

[0035] 3) Mix solution A and solution B, control the molar ratio of ten-membered cucurbit ring and N-(3-aminopropyl)-4-(pyrene-1-yl) in the mixture to 2:1, and react at room temperature Probes are made.

Embodiment 2

[0036] Embodiment 2: A fluorescent probe for detecting the pesticide Duogudine in water, the preparation method is as follows:

[0037] 1) Take the ten-membered melon ring, and then add water to dissolve it to obtain solution A;

[0038] 2) Take N-(3-aminopropyl)-4-(pyrene-1-yl)butyramide, and then dissolve it in water to obtain solution B;

[0039] 3) Mix solution A and solution B, control the molar ratio of ten-membered cucurbit ring and N-(3-aminopropyl)-4-(pyrene-1-yl) in the mixture to 5:1, and react at room temperature Probes are made.

Embodiment 3

[0040] Embodiment 3: A fluorescent probe for detecting the pesticide Duofruit in water, the preparation method is as follows:

[0041] 1) Take the ten-membered melon ring, and then add water to dissolve it to obtain solution A;

[0042] 2) Take N-(3-aminopropyl)-4-(pyrene-1-yl)butyramide, and then dissolve it in water to obtain solution B;

[0043] 3) Mix solution A and solution B, control the molar ratio of ten-membered cucurbit ring and N-(3-aminopropyl)-4-(pyrene-1-yl) in the mixture to 10:1, and react at room temperature Probes are made.

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Abstract

The invention discloses a fluorescent probe for detecting the pesticide dodine in water and a detection method thereof. ) Butanamide aqueous solution is prepared. The detection steps are: 1) take the probe and dilute with water to obtain a probe standard solution; 2) add water to be detected to the probe standard solution prepared in step 1), place it for 10-20min, and then use a fixed excitation Fluorescence emission spectrum measurement is carried out at a wavelength of 332nm, and the change curve of the fluorescence intensity at the excited laser wavelength is drawn; 3) According to the curve calculation of step 2), the fluorescence under the corresponding 390nm and 488nm is calculated before and after adding the water to be measured in the fluorescent probe solution The emission spectrum intensity change value ΔI can be detected. The fluorescent probe of the present invention can detect Dodine in water, and has the characteristics of high sensitivity, low detection cost, simple sample processing, convenient operation, rapid determination and real-time detection. In addition, it also has the advantages of strong selectivity and quantitative detection. features.

Description

technical field [0001] The invention relates to a fluorescent probe and a detection method thereof, in particular to a fluorescent probe and a detection method thereof for detecting the pesticide dodine in water. Background technique [0002] Dodokine, also known as dodecylguanidine acetate, is a widely used surfactant. As a low-toxic fungicide, Duofruit can control many major mold diseases on fruit trees, vegetables, nuts, ornamental plants and shade trees. Its bactericidal mechanism is to destroy the permeability of cells, leading to extravasation of cell contents and cell death. In addition, it is used for disinfection and sterilization of industrial water treatment agents, detergents, seed treatment agents, women's and children's products, and food packaging. [0003] However, dodine also has some potential hidden dangers, such as: poisoning after ingestion, inhalation or skin absorption, and it is a suspected carcinogen. [0004] Therefore, the detection of dodine is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/64C09K11/06
CPCG01N21/6402G01N21/643C09K11/06C09K2211/1011C09K2211/1029
Inventor 肖昕罗阳范颖张威朱心怡连成杰
Owner GUIZHOU UNIV
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