Method for eliminating Raman fluorescence interference of power sensitive substances

A sensitive substance, Raman spectroscopy technology, applied in the field of detection, to achieve the effect of simple and easy operation, high reliability, and deducting fluorescence interference

Active Publication Date: 2016-06-01
BEIJING HTNOVA DETECTION TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0005] The present invention aims to solve the problems described above

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  • Method for eliminating Raman fluorescence interference of power sensitive substances
  • Method for eliminating Raman fluorescence interference of power sensitive substances
  • Method for eliminating Raman fluorescence interference of power sensitive substances

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Embodiment Construction

[0027] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. It should be noted that, the embodiments in the present application and the features in the embodiments may be arbitrarily combined with each other if there is no conflict.

[0028] At present, some substances in Raman spectroscopy are more sensitive to the laser power of the excitation light. For Raman spectroscopy of power-sensitiv...

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Abstract

The invention provides a method for eliminating Raman fluorescence interference of power sensitive substances. The method is used for solving the problem of fluorescence interference in Raman spectrum measurement and includes the steps that a first Raman fluorescence mixed signal of a to-be-measured sample under the condition of first power is obtained; a second Raman fluorescence mixed spectrum of the to-be-measured sample under the condition of second power larger than the first power is obtained; a Raman signal in the second Raman fluorescence mixed spectrum serves as noise, and is subjected to de-noising processing through a wavelet de-noising mode, and a single fluorescence signal is obtained; a standardized first Raman fluorescence mixed spectrum and the amplitude value of the de-noised fluorescence signal are subjected to fluorescence eliminating processing, and the Raman spectrum of the to-be-measured sample is obtained. By means of the method, the Raman fluorescence interference of the power sensitive substances can be effectively eliminated, and the detection method is simple and reliable.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a method for eliminating Raman fluorescence interference of power-sensitive substances. Background technique [0002] Raman spectroscopy is a type of inelastic scattering spectroscopy. Raman spectroscopic analysis is based on the Raman scattering effect discovered by Indian scientist C.V. Raman (Raman), and analyzes the scattering spectrum with different frequencies from the incident light to obtain information on molecular vibration and rotation, and is applied to the study of molecular structure. an analytical method. When light irradiates a substance, elastic scattering and inelastic scattering occur. The scattered light of elastic scattering has the same component as the wavelength of the excitation light, and the scattered light of inelastic scattering has components longer and shorter than the wavelength of the excitation light, which are collectively referred to as the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65
CPCG01N21/65
Inventor 牟涛涛熊胜军赵喜袁丁夏征
Owner BEIJING HTNOVA DETECTION TECH CO LTD
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