Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method and system for quantitative analysis of Raman spectrum based on direct extraction of spectral peak height

A quantitative analysis and Raman spectroscopy technology, which is applied in the field of spectral detection and spectral analysis, can solve the problems of low precision and differences in detection results, achieve high quantitative analysis precision, eliminate the influence of fluorescence, and improve the effect of quantitative analysis precision

Active Publication Date: 2022-05-10
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing Raman spectrum analysis method has large differences in detection results and low precision when the spectrum shape changes, and provides a Raman spectrum quantitative analysis method based on direct extraction of spectral peak heights and system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for quantitative analysis of Raman spectrum based on direct extraction of spectral peak height
  • Method and system for quantitative analysis of Raman spectrum based on direct extraction of spectral peak height
  • Method and system for quantitative analysis of Raman spectrum based on direct extraction of spectral peak height

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0042] Raman spectroscopy combined with laser technology can easily achieve quantitative analysis of substances. The existing Raman quantitative analysis method needs to perform background subtraction, and then perform quantitative analysis according to the peak area of ​​the Raman peak. The current automated background subtraction algorithm is based on the spectral shape of the Raman spectrum. If the spectral shape changes, many errors may occur, resulting in a decrease in the accuracy of the Raman spectral quantitative analysis system. Based on this, the present invention provides a method and system for quantitative analysis of Raman spectra based on direct extraction of spectral peak heights. The analysis system can improve the precision of the Raman spectroscopy quantitative analysis system.

[0043] Such as fig...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a Raman spectrum quantitative analysis method and system based on direct extraction of spectral peak heights, which solves the problems of large differences in detection results and low precision in existing Raman spectral analysis methods when the spectral shape changes. The method and the system do not need background subtraction, thereby improving the precision of the Raman spectrum quantitative analysis system. The method includes: step 1, collecting Raman light signals passing through the sample, and processing the Raman light signals into digital signals; step 2, performing singularity noise removal processing on the target substance signal processed in step 1; step 3, processing the The signal processed in step 2 is processed to extract the peak height; step 4, repeat the data processing process of step 2 and step 3, carry out the same processing to the reference substance, and obtain the peak height signal of the reference substance; step 5, perform the peak height signal on the peak height signal Normalization processing; step 6, performing quantitative analysis on the signal processed in step 5 to obtain a quantitative analysis result of the sample.

Description

technical field [0001] The invention belongs to the field of spectrum detection and spectrum analysis, in particular to a Raman spectrum quantitative analysis method and system based on direct extraction of spectrum peak heights. Background technique [0002] Raman spectroscopy detection technology is a kind of spectral detection technology, which has been widely used because of its relatively simple light source, good ability to identify substances, and no complicated processing of samples. Existing portable Raman spectroscopy equipment can be used directly on samples without any treatment, making it widely used in various fields such as mineral prospecting, drug detection, and food detection. [0003] Existing Raman spectral analysis methods generally require background subtraction first, and then spectral analysis. Most of the automated background subtraction algorithms are designed according to the spectral shape of the Raman spectrum, for example, polynomial fitting me...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/65
CPCG01N21/65
Inventor 周淼淼聂荣志高飞王鹏飞彭波
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com