Fluorescence illuminating fluorescent material for detecting explosive, preparing method and application

Abstract

The invention discloses a fluorescence illuminating fluorescent material for detecting explosive, a preparing method and application, and belongs to the field of fluorescence sensors. A structural formula of the fluorescent material is as shown in formula I and formula II. When the structural formula is I, the fluorescent material is prepared by Suzuki coupling reaction of TPP and phenylboronic acid with different substituent groups at para-positions; a polymer is prepared by hydrosilylation of V-TPP and polymethylsiloxane; the fluorescent material is used for quantitative detection of the explosive and specific detecting steps comprise: dissolving the fluorescent material in a mixed solvent of tetrahydrofuran and water to obtain a fluorescent reagent; measuring the initial fluorescence intensity of the fluorescent reagent, then placing an explosive solution to be detected into the fluorescent reagent in sequence, uniformly stirring after adding every time, and instantly measuring the fluorescence intensity, wherein by comparing the change of the fluorescence intensity before and after the explosive solution is added, along with increment of the explosive, the fluorescence intensity of the fluorescent reagent is enhanced.

Description

technical field [0001] The invention relates to a fluorescent lighting-type fluorescent material for detecting explosives, a preparation method and an application thereof, and belongs to the field of fluorescent sensors. Background technique [0002] Since Nobel invented safe explosives in 1864, explosives have played an extremely important role in the development of modern society, especially in the military field, aerospace field, infrastructure construction field and some industrial fields. However, with the expansion of the application range of explosives With the emergence of new varieties of explosives and the invention of new explosives technology, the safety management of explosives has become more and more important. [0003] Especially after the "9.11" incident, a new situation has emerged in anti-terrorism. Worldwide, terrorist activities are rampant, and terrorist bombings are on the rise year by year, seriously threatening the safety of people's lives and proper...

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Problems solved by technology

[0004] Due to the wide variety of explosives, it has brought many difficulties to the detection work

At present, methods such as ion mobility spectrometer and Raman spectroscopy are generally used to detect explosives. However, these methods are limited in their use due to the high cost of instruments, sensitivity to pollutants, or inconvenient detection in public places, such as colorimetry. Optical detection methods such as fluorescence method or fluorescence method have attracted widespread attention due to their fast response speed, simple and reliable instrument, and can be used for detection in public places. However, most of the methods for detecting explosives based on fluorescence are fluorescence quenching. The eyes are not sensitive to the gradual weakening or even quenching of the fluorescence intensity, so it is not easy to observe

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