Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for testing passive sedimentation concentration of particulate matters of human body

A testing method and particle technology, applied in particle suspension analysis, measuring device, suspension and porous material analysis, etc., can solve the problem of low precision of passive sedimentation exposure

Inactive Publication Date: 2019-07-26
TIANJIN UNIV
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a method for testing the concentration of passive sedimentation of human particulate matter, and solve the problem of low accuracy of the research method of passive sedimentation exposure in the prior art

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 for testing passive sedimentation concentration of particulate matters of human body
  • Method for testing passive sedimentation concentration of particulate matters of human body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] The present invention uses specific fluorescent particles to characterize passive sedimentation particles. Such as figure 1 As shown, the passive deposition sampling method of particulate matter at a specific time is firstly used to sample passive deposition of particulate matter. Second, use a fluorescence microscope to obtain high-resolution images of on-sample particles. Then, the particle number on the sample is counted by using the particle image sampling sample automatic counting method. Thus, the passive exposure concentration of particulate matter can be obtained. The relative error in the analysis of different situations is tested and analyzed by using the calibration method of particle sedimentation. figure 2 Shown is the comparison and calibration chart of glass sampling sheet and PTFE sampling membrane sampling method. ...

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 invention discloses a method for testing passive sedimentation concentration of the particulate matters of the human body, and particularly relates to a method for quantitatively measuring the passive exposure of the human particulate matters by combining a core technology of a fluorescent particle tracing and marking technology, a particulate matter passive sedimentation concentration sampling method, a particulate matter image sampling sample automatic counting method and the like. Previous indirect analysis of human exposure is developed into a direct test of human exposure. The methodintegrates the sampling method, the calibration method, the test method and the statistical method for the passive sedimentation concentration of the particulate matters, and can accurately test the passive sedimentation concentration of the particulate matters of the human body. The establishment of the method provides possibility for passive sedimentation exposure analysis of the particulate matters of the human body, which has very important significance for the research of the health threat of the particulate matters.

Description

technical field [0001] The invention relates to a method for testing the concentration of particulate matter in a human body, in particular to a method for testing the passive sedimentation concentration of particulate matter in a human body. Background technique [0002] The concept of personal exposure is defined as the exposure of a person to a substance in an environment. The exposure of personnel to particulate matter can be further refined into the exposure amount of particulate matter actively inhaled and the exposure amount of particulate matter passively deposited. [0003] Actively inhaled particle exposure is the particle exposure that enters the human body through breathing, which can be measured using active optical particle counters and other instruments. Particulate pollutants in the air will also fall on exposed surfaces such as human skin and eyes through passive deposition. When these particles carry bacteria, viruses or allergens, it will cause discomfor...

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 Applications(China)
IPC IPC(8): G01N15/06
CPCG01N15/0612
Inventor 刘俊杰任键林
Owner TIANJIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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