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Fluorescent sensor for efficiently detecting diethylamine and preparation method and application thereof

A fluorescence sensor and diethylamine technology, applied in the field of fluorescence analysis and detection, can solve the problem of single efficient selective detection, and achieve the effects of good selectivity, fast response speed and good stability

Active Publication Date: 2019-07-12
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many fluorescent sensors have achieved great success in the detection of organic amines, but it is still a great challenge to efficiently and selectively detect a single amine, such as diethylamine.

Method used

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  • Fluorescent sensor for efficiently detecting diethylamine and preparation method and application thereof
  • Fluorescent sensor for efficiently detecting diethylamine and preparation method and application thereof
  • Fluorescent sensor for efficiently detecting diethylamine and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Based on hollow silica particle photonic crystal (band gap wavelength is 520nm), 10 -5 mol / L Rhodamine 6G is a fluorescent dye, which can detect 5.0mg / L diethylamine.

[0030] Step 1: Prepare the fluorescent probe solution, dissolve the fluorescent dye in ethanol, mix evenly with ultrasound, and set the volume to a concentration of 10 -5 mol / L;

[0031] Step 2: Infiltrate the fluorescent probe solution obtained in Step 1 into the hollow spherical photonic crystal substrate, and cover the surface with a plexiglass sheet of the same size to form a "sandwich" structure of glass / photonic crystal substrate / glass.

[0032] The detection steps are as follows:

[0033] Place the resulting "sandwich" structure of glass / photonic crystal substrate / glass horizontally, record the initial fluorescence emission spectrum under the irradiation of 365nm excitation light, then add 5.0mg / L diethylamine dropwise, observe the fluorescence enhancement effect, and record the fluorescence emi...

Embodiment 2

[0036] Based on hollow silica particle photonic crystal (band gap wavelength is 520nm), 10 -5 mol / L rhodamine 6G is a fluorescent dye, which can detect 0.5mg / L diethylamine.

[0037] Step 1: Prepare the fluorescent probe solution, dissolve the fluorescent dye in ethanol, mix evenly with ultrasound, and set the volume to a concentration of 10 -5 mol / L;

[0038] Step 2: Infiltrate the fluorescent probe solution obtained in Step 1 into the hollow spherical photonic crystal substrate, and cover the surface with a plexiglass sheet of the same size to form a "sandwich" structure of glass / photonic crystal substrate / glass.

[0039] The detection steps are as follows:

[0040] Place the resulting "sandwich" structure of glass / photonic crystal substrate / glass horizontally, record the initial fluorescence emission spectrum under the irradiation of 365nm excitation light, then add 0.5mg / L diethylamine dropwise, observe the fluorescence enhancement effect, and record the fluorescence emi...

Embodiment 3

[0043] Based on hollow silica particle photonic crystal (band gap wavelength is 520nm), 10 -5 mol / L rhodamine 6G is a fluorescent dye, and can detect 0.05mg / L diethylamine.

[0044] Step 1: Prepare the fluorescent probe solution, dissolve the fluorescent dye in ethanol, mix evenly with ultrasound, and set the volume to a concentration of 10 -5 mol / L;

[0045] Step 2: Infiltrate the fluorescent probe solution obtained in Step 1 into the hollow spherical photonic crystal substrate, and cover the surface with a plexiglass sheet of the same size to form a "sandwich" structure of glass / photonic crystal substrate / glass.

[0046] The detection steps are as follows:

[0047] Place the resulting "sandwich" structure of glass / photonic crystal substrate / glass horizontally, record the initial fluorescence emission spectrum under the irradiation of 365nm excitation light, then add 0.05mg / L diethylamine dropwise, observe the fluorescence enhancement effect, and record the fluorescence emi...

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Abstract

The invention belongs to the technical field of fluorescence analysis and detection, relates to a fluorescent sensor for efficiently detecting diethylamine and preparation method and application thereof, and aims to solve the problem that a single diethylamine type cannot be selectively detected with high efficiency in the prior art. The technical scheme of the invention is as follows: firstly, preparing a fluorescent probe solution, then, infiltrating the obtained fluorescent probe solution into a hollow sphere photonic crystal substrate, and placing cover glass with the same size on two sides of the hollow sphere photonic crystal substrate to form a sandwich structure of glass / photonic crystal substrate / glass, i.e. the fluorescent sensor for efficiently detecting diethylamine. The fluorescent sensor for efficiently detecting diethylamine, prepared by the invention, has good stability, high sensitivity, strong anti-interference capability, good selectivity, high response speed and capability of being used for real-time monitoring, and the fluorescent probe is simple and easy to obtain, and does not involve any organic synthesis.

Description

technical field [0001] The invention belongs to the technical field of fluorescence analysis and detection, and in particular relates to a fluorescence sensor for efficiently detecting diethylamine, a preparation method and application thereof. Background technique [0002] Diethylamine is a common organic amine compound. It is a very important chemical raw material and pharmaceutical intermediate. It is widely used in pesticides, pharmaceuticals, automotive chemicals, cosmetics and food industries. In the process of production and use, diethylamine is also discharged into the atmosphere, soil and water in various forms, causing serious environmental pollution. Diethylamine has a pungent smell, which can cause great harm to the human skin, eyes and respiratory system, and can also cause certain diseases in the stomach, lungs, urogenital and other aspects. Therefore, the selective and efficient detection of diethylamine is very important for the monitoring and control of env...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64
CPCG01N21/6402G01N21/6428G01N2021/6432
Inventor 李露孟甜甜
Owner SHAANXI UNIV OF SCI & TECH