Marine TOC sensor based on ultraviolet three-dimensional fluorescence and its application method
A three-dimensional fluorescence and sensor technology, applied in the direction of fluorescence/phosphorescence, material excitation analysis, etc., can solve the problems of shortening detection time, achieve the effects of shortening detection time, accurate measurement, and increasing energy density and intensity
Active Publication Date: 2022-05-10
YANSHAN UNIV
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[0004] The technical problem to be solved in the present invention is to provide a marine TOC sensor based on ultraviolet three-dimensional fluorescence and a method of use, which can quickly and reagent-free detect total organic carbon in seawater, without complicated pretreatment and chemical analysis of seawater samples, greatly improving Simplifies the operation steps, shortens the detection time, realizes the demand for rapid detection, and will not cause secondary pollution to the environment
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[0035] Below in conjunction with embodiment the present invention is described in further detail:
[0036] like figure 1 As shown, the marine TOC sensor based on ultraviolet three-dimensional fluorescence includes a sample pool 2 equipped with simulated seawater, a light source module, a focusing lens group 7, a fluorescence acquisition module and a data processing module. The light source module emits light to the sample pool 2 through the focusing lens group 7 to form a focus, which is not only the focus of fluorescence generation, but also the focus of fluorescence collection. The fluorescence acquisition module collects the three-dimensional fluorescence spectrum excited by the focal point, and the data processing module processes the three-dimensional fluorescence spectrum data to obtain the TOC concentration value in the sample.
[0037] The light source module includes an ultraviolet LED array 1. The ultraviolet LED array 1 is composed of ultraviolet LEDs with center w...
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The invention discloses a marine TOC sensor based on ultraviolet three-dimensional fluorescence and its use method, which includes a sample pool equipped with simulated seawater, a light source module, a focusing lens group, a fluorescence acquisition module and a data processing module. The light source module emits a light source to the sample pool through the The focus lens group forms a focal point, the fluorescence acquisition module collects the three-dimensional fluorescence spectrum excited by the focus, and the data processing module processes the three-dimensional fluorescence spectrum data to obtain the TOC concentration value in the sample. The light source module includes an ultraviolet LED array, and the ultraviolet LED array Composed of ultraviolet LEDs with central wavelengths of 255nm, 265nm and 275nm, the invention can accurately detect the TOC value of seawater samples based on the three-dimensional fluorescence data excited by the ultraviolet LED array, and the finished sensor manufactured in the later stage can be placed in the monitored ocean for a long time Seawater TOC content detection is carried out in the area.
Description
technical field [0001] The invention relates to a marine TOC sensor and a using method based on ultraviolet three-dimensional fluorescence, and belongs to the field of marine total organic carbon detection. Background technique [0002] For a long time, the measurement technology of Total Organic Carbon (TOC) in seawater has been mainly carried out through the mode of taking water samples on site and analyzing them in laboratories. At present, the following two traditional chemical detection methods are mainly used: high temperature catalytic combustion method and wet oxidation method. The biggest disadvantage of the traditional chemical detection method is that it stays on the basis of manual analysis in the laboratory. It has defects such as complicated analysis process, large consumption of reagents, secondary pollution, and low detection frequency. Therefore, no matter which method is used for organic carbon analysis, it cannot Realize on-site and rapid analysis mode, a...
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IPC IPC(8): G01N21/64
CPCG01N21/64
Inventor 付广伟毕卫红张宏扬李煜付兴虎刘强金娃
Owner YANSHAN UNIV