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A Dual Reaction Site Fluorescent Probe

A fluorescent probe, dual-reaction technology, used in fluorescence/phosphorescence, luminescent materials, material analysis by optical means, etc., can solve security threats, water pollution and other issues

Active Publication Date: 2022-05-17
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hydrazine is a water-soluble compound that easily causes water pollution and poses a threat to the safety of drinking water and agricultural products such as fruits and vegetables

Method used

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  • A Dual Reaction Site Fluorescent Probe
  • A Dual Reaction Site Fluorescent Probe
  • A Dual Reaction Site Fluorescent Probe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1. Preparation of dual reactive site fluorescent probes

[0015] The synthetic route is shown in the following formula:

[0016]

[0017] Compound 1 (0.50g, 2.90mmol), compound 2 (0.75g, 4.36mmol) were dissolved in dichloromethane (15mL) and added to a 100mL three-necked flask, and N,N-diisopropylethylamine ( 0.75 mL), stirred at room temperature for 5 h, and separated by column chromatography to obtain compound 3 as a white solid.

[0018] The product was characterized by H NMR and C NMR.

[0019] 1 H NMR (300MHz, DMSO), δ(ppm): 10.18(s, 1H), 8.67(s, 1H), 8.33(d, J=9.0Hz, 1H), 8.15(d, J=8.5Hz, 1H) , 8.07-7.93(m, 2H), 7.69(dd, J=8.9, 2.4Hz, 1H), 7.55(dd, J=10.8, 4.9Hz, 2H), 7.39(dd, J=7.6, 4.4Hz, 3H ). 13 C NMR (75MHz, DMSO): δ (ppm): 194.50, 193.35, 153.65, 153.35, 136.97, 134.64, 134.63, 132.20, 131.31, 130.44, 129.41, 127.56, 123.90, 123.14, 122.82.21, 119.

Embodiment 2

[0020] Embodiment 2. Preparation of fluorescent probe test paper

[0021] Cut the filter paper into a square test paper with a size of 1 cm×1 cm, and soak it in 1 mM fluorescent probe solution (DMSO solvent) of the present invention to obtain the fluorescent probe test paper of the present invention.

[0022] The fluorescence intensity of the fluorescent probe of the present invention varies with mercury ions as figure 1 As shown, according to this change, the standard curve of the fluorescence intensity of the fluorescent probe (10 μM) can be made as the mercury ion concentration changes, and the standard curve is as follows figure 2 As shown, through the establishment of the standard curve, the fluorescent probe of the present invention can be used for the quantitative detection of mercury ions. Fluorescent intensity of the fluorescent probe of the present invention varies with hydrazine as image 3 As shown, according to this change, the standard curve of the fluorescenc...

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Abstract

The invention discloses a fluorescent probe with double reaction sites, the specific chemical structure formula is as follows: the fluorescent probe of the invention can be used for the detection of mercury ions and hydrazine.

Description

technical field [0001] The invention relates to a fluorescent probe with double reaction sites and its application in detecting mercury ions and hydrazine. Background technique [0002] Mercury widely exists in the food chain and ecological environment. Mercury salts with better water solubility are highly toxic and can cause brain and liver damage after inhalation, contact or ingestion. Mercury ion (Hg 2+ ) will be converted into methylmercury and dimethylmercury. Methylmercury is more toxic than mercury ions and is easily absorbed by the human body. Minamata disease is a symptom of methylmercury poisoning. At present, the analytical methods for detecting mercury mainly include inductively coupled plasma mass spectrometry, dithizone colorimetry, cold atomic absorption spectrometry, atomic fluorescence spectrometry, inductively coupled plasma emission spectrometry, etc. [0003] Hydrazine (N 2 h 4 ) is a strong reducing agent that plays an important role in agriculture,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C329/04C09K11/06G01N21/64
CPCC09K11/06C07C329/04G01N21/643C09K2211/1007C09K2211/1011
Inventor 杨绍祥田红玉刘永国孙宝国武小明王皓李雅楠
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY