Carbon dioxide chemical fluorescent sensor material on basis of amidine/guanidine group and preparation detection method thereof

A chemiluminescence, carbon dioxide technology, applied in chemical instruments and methods, luminescent materials, chemiluminescence/bioluminescence, etc., can solve the problems of complex equipment and detection procedures, susceptible to water interference, detection interference, etc., to achieve a wide range of applications , the results are intuitive, the quantitative effect of the measurement method

Inactive Publication Date: 2012-10-10
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

EC sensors usually work at high temperature (300-800°C), which not only consumes a lot of energy, but also is not suitable for places where flammable and explosive materials exist
At the same time, the infrared sensor is not only bulky but also expensive to fake, and the interference of CO gas is also a difficult problem, because CO gas is often mixed with CO 2 mixed together, and its infrared absorption spectrum with CO 2 similarly, which can cause a large disturbance in the detection of
In addition, neither EC nor IR spectra of CO 2 Detectors are susceptible to interference from water
Gas chromatography-mass spectrometry can also be used to detect CO 2 , but this process is expensive and time-consuming
Carbon nanotube-based field-effect transistors and inorganic semiconductors also have CO 2 Promising application of detection, but requires complex equipment and detection procedures

Method used

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  • Carbon dioxide chemical fluorescent sensor material on basis of amidine/guanidine group and preparation detection method thereof
  • Carbon dioxide chemical fluorescent sensor material on basis of amidine/guanidine group and preparation detection method thereof
  • Carbon dioxide chemical fluorescent sensor material on basis of amidine/guanidine group and preparation detection method thereof

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preparation example Construction

[0033] The amount ratio of the amidine group and / or guanidine group, hydroxyl group and / or amine group in the chemical fluorescence sensor material satisfies 1:10˜10:1. The amount of fluorescent substance (analytical pure) added meets the requirement that the overall chemical fluorescence sensor material contains 0.5mg-4mg / mL fluorescent substance. Due to the limitations of the synthesis method of amidino and guanidino and the limitation that it must be liquid at normal temperature after synthesis, it is very difficult to realize the liquid organic matter containing amidino and guanidine simultaneously for liquid mixtures. And / or the liquid organic matter or liquid organic mixture of guanidinium only includes the liquid organic matter of guanidinium, the liquid organic matter containing guanidinium, the organic mixture formed by the liquid organic matter containing guanidinium and the liquid organic compound containing guanidinium, when selecting When an organic mixture is com...

Embodiment 1

[0048] This embodiment provides a carbon dioxide chemical fluorescence sensor material based on amidine / guanidine group. The chemical fluorescence sensor material is composed of a fluorescent substance and a matrix substance. The fluorescent substance is an aggregation-induced luminescent molecule, specifically tetraphenylethylene, and its molecular structure is as follows: Figure 1-A shown. The matrix material is composed of liquid amino alcohol compounds 5-amino-1-pentanol, 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) containing amine and hydroxyl groups, 1,8- The molecular structure of diazabicyclo[5.4.0]undec-7-ene (DBU) is as follows Figure 2-A shown. The ratio of the sum of the amount of substances of the amino group and the hydroxyl group to the amount of the amidine group in the DBU is 1:1, and the amount of the fluorescent substance added meets the volume concentration of the fluorescent substance accounting for the whole sensor material is 3mg / mL. The selected DBU ...

Embodiment 2

[0057] Example 2 ( A liquid organic compound containing an amidine group is mixed with an alcoholic liquid organic compound)

[0058] This embodiment provides a carbon dioxide chemiluminescent sensor material based on amidine / guanidine group. The chemiluminescent sensor material is composed of a fluorescent substance and a matrix substance. The fluorescent substance is an aggregation-induced luminescent molecule. Analytical pure 1, 1, 2, 3,4,5-hexaphenyl-1 hydrogen-silacyclopentadiene, the molecular structure is as follows Figure 1-B shown. The matrix material is composed of analytically pure n-propanol, analytically pure composition, The schematic diagram of the structure is as Figure 2-B shown. Among them, the amount of the substance containing the hydroxyl group in n-propanol is the same as that of the amidine group-containing molecule The ratio of the amount of the amidine group substance in the solution is 1:1, and the added amount of the fluorescent substance...

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Abstract

The invention discloses a carbon dioxide chemical fluorescent sensor material on the basis of an amidine / guanidine group and a preparation detection method thereof. The chemical fluorescent sensor material consists of a fluorescent substance and a matrix substance; the matrix substance is formed by a liquid organism or a liquid organic mixture comprising the amidine group and / or the guanidine group and a liquid organism or a liquid organic mixture comprising a hydroxyl group and / or an amidogen group, or the matrix substance is a liquid organism comprising the amidine group and / or the guanidine group and the hydroxyl group and / or the amidogen group; the ratio of amounts of substances of the amidine group and / or the guanidine group to the hydroxyl group and / or the amidogen group in the matrix substance meets 1:10 to 10:1; and the chemical fluorescent sensor material comprises 0.5mg / mL to 4mg / mL of fluorescent substance. The raw materials for preparing the chemical fluorescent sensor material are simple, convenient and cheap; the chemical fluorescent sensor material is environmental-friendly; in the using process of the chemical fluorescent sensor material, other residual energy cannot be consumed; and the chemical fluorescent sensor material has simple and convenient testing process and a visual and visible result.

Description

technical field [0001] The invention belongs to the field of intelligent detection materials, in particular to an amidine / guanidinium-based carbon dioxide chemical fluorescence sensor material and a preparation and detection method thereof. Background technique [0002] Stimulus-responsive materials are a kind of intelligent materials, some people also call them environment-responsive materials, which are a kind of materials whose physical or chemical properties will change correspondingly under external stimuli. External stimuli include light, heat, acidity, solvents, ionic strength, electric and magnetic fields, etc. When these stimulus signals occur, the material will respond to external stimuli, that is, its own properties, such as phase state, shape, surface energy, reaction rate, viscosity, membrane permeation rate or recognition performance, surface wettability, etc. change. All of the above is due to the change of the molecular structure of the stimuli-responsive m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/76C09K11/06
Inventor 王耀田彤江雷
Owner BEIHANG UNIV
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