Fluorescence sensor and application thereof in detection of gas-phase organic amine compounds
A fluorescent sensor and compound technology, applied in the field of fluorescent materials, can solve the problems of few fluorescence detection reports and retention of gas-phase organic amine compounds
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[0053] In the present invention, the preparation method of the fluorescent material preferably includes the following steps:
[0054] The sub-donor material and the electron acceptor material are mixed to obtain a fluorescent material.
[0055] The present invention has no special requirements on the mixing method, and a mixing method well known to those skilled in the art can be used, such as stirring and mixing specifically.
[0056] The present invention provides a fluorescent sensor, which includes a substrate and a fluorescent material layer attached to the surface of the substrate, and the fluorescent material in the fluorescent material layer is the above-mentioned fluorescent material.
[0057] In the present invention, the substrate is preferably a translucent plate, specifically preferably a quartz plate or a glass plate.
[0058] In the present invention, the thickness of the fluorescent material layer is preferably 20-60 nm, more preferably 30-50 nm.
[0059] The p...
Embodiment 1
[0079] Mix and dissolve 3mg of electron donor material (TCTA) and 1.5mg of electron acceptor material (PIM-TRZ) in 1ml of dichloromethane to prepare a solution, and then use a homogenizer at a speed of 2000r / min to homogenize on a quartz plate. Glue for 30s, then dry naturally for 24h to obtain a fluorescent sensor (abbreviated as F1).
[0080] Wherein, TCTA has the structure shown in formula B-12, and the PIM-TRZ has the structure shown in formula A-1.
[0081] The UV absorption spectrum of the resulting fluorescent sensor is as follows figure 1 As shown, the fluorescence emission spectrum as figure 2 shown.
[0082] Depend on figure 1 It can be seen that the absorption spectrum of the fluorescent sensor is the superposition of the absorption spectra of the compound TCTA and PIM-TRZ. Depend on figure 2 It can be seen that the emission peak of F1 is at 509nm, which is obviously red-shifted compared with the emission peaks of TCTA (385nm) and PIM-TRZ (406nm).
Embodiment 2
[0084] Put 20 μl of the following organic amines into 13 cuvettes: aromatic amines (aniline, p-toluidine, N-phenyl-1-naphthylamine, 1,2-phenylenediamine, 1-naphthylamine and diphenylamine) , MPEA, fatty amines (diisopropylamine, triethylamine, ethylenediamine, n-hexylamine, N,N'-dimethylethylenediamine and dimethylpropylenediamine). After being sealed and placed for 30 minutes, the gas containing various amines was obtained, and the fluorescence sensor prepared in Example 1 was quickly put into it, and the fluorescence spectrum changes of the fluorescence sensor in various amine gases were tested by a fluorescence spectrometer.
[0085] image 3 It is the change result of the fluorescence spectrum of the fluorescence sensor exposed to MPEA gas with the contact time. image 3 (a) is the fluorescence emission spectrum, (b) is the physical picture of the fluorescence sensor exposed to MPEA vapor for 0s and 10s. Depend on image 3 In (a), it can be seen that when the fluorescen...
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Abstract
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