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Three-dimensional fluorescence spectrum peak searching method

A three-dimensional fluorescence and spectrum technology, applied in the field of three-dimensional fluorescence spectrum peak-seeking, can solve the problems of poor effect, low efficiency, and long time-consuming, and achieve the effects of simple operation, fast peak-finding speed, and reduced time-consuming peak-finding

Active Publication Date: 2019-06-14
CHENGDU ACADEMY OF ENVIRONMENTAL SCI +1
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Problems solved by technology

[0005] The purpose of the present invention is to provide a three-dimensional fluorescence spectrum peak-finding method, which mainly solves the problems of long time consumption, low efficiency and poor effect in the existing manual visual peak-finding method

Method used

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  • Three-dimensional fluorescence spectrum peak searching method

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Embodiment

[0040] Such as Figure 1 to Figure 5 As shown, a three-dimensional fluorescence spectrum peak-finding method, including automatic peak-finding mode and manual peak-finding mode.

[0041] The specific operation process of the manual peak-finding mode of the 3D fluorescence spectrum is as follows, and please refer to the attached Figures 1 to 3 :

[0042] (1) Standardize each element in the three-dimensional fluorescence spectrum data matrix X to obtain a new standardized three-dimensional fluorescence spectrum data matrix X', each element in X' is equal to the element at the same position in X divided by the corresponding excitation wavelength in X ex=355nm, the element whose emission wavelength em=400nm;

[0043] (2) Generate a three-dimensional fluorescence spectrum contour map according to the three-dimensional fluorescence spectrum data matrix;

[0044] (3) The user manually calibrates the peak position at any point in the area where the peak is considered to exist in t...

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Abstract

The invention discloses a three-dimensional fluorescence spectrum peak searching method, which mainly solves the problems of long time consumption, low efficiency, poor effect and the like of the existing manual visual inspection peak searching method. The method comprises the following steps of (Step 1) firstly performing standardized processing on a three-dimensional fluorescence spectrum data matrix X; (Step 2) generating a contour map by using the three-dimensional fluorescence spectrum subjected to standardized processing; (Step 3) selecting different peak searching modes for processing the contour map by a user according to requirements; (Step 4) determining a peak searching region according to the selected peak searching mode, and performing peak searching; and (Step 5) comparing asearched peak with a recorded peak according to the software processing program of the peak searching method; and recording a non-repeated new peak, and completing the peak searching until all peaks are searched. By using the scheme, the method provided by the invention achieves the goals of short time consumption and high precision, and has high practical values and popularization values.

Description

technical field [0001] The invention belongs to the technical field of quantitative analysis of three-dimensional fluorescence spectrum, and in particular relates to a method for finding peaks in three-dimensional fluorescence spectrum. Background technique [0002] The content of dissolved organic matter in natural water is quite rich, and its source is mainly the degradation of animals, plants and microorganisms in water and the input of terrestrial environment. Its main components include humic acid, fulvic acid, polycyclic aromatic hydrocarbons, lipids and amino acids, etc. . With the help of the type and content information of dissolved organic matter, researchers can study the impact of human activities on the migration, transformation and degradation of various organic and inorganic pollutants in the water environment, and then formulate more reasonable water environment protection. measure. Due to the variety of soluble organic compounds in water bodies and complex...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64
Inventor 贾滨洋赵飞翔刘明哲赖承钺
Owner CHENGDU ACADEMY OF ENVIRONMENTAL SCI
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