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

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...

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

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