Check patentability & draft patents in minutes with Patsnap Eureka AI!

a passive sampler

A passive sampler and fixer technology, applied in sampling devices and other directions, can solve problems such as inability to use C isotope determination

Active Publication Date: 2019-03-12
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, dry sediment samples collected with PUF as a carrier can only be used for the determination of inorganic and organic markers, and cannot be used for OC / EC and its 14 C isotope determination

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
  • a passive sampler
  • a passive sampler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 1 and figure 2 As shown, the passive sampler of this embodiment includes an upper cover plate 1, a fixing bracket 2, a holder and a stainless steel dish 3, and the holder is composed of an upper annular fixing plate 4 and a perforated support plate 5 below, A stainless steel dish 3 is fixed on the perforated support plate 5, and the upper opening of the stainless steel dish is adapted to and fixedly connected with the annular hole in the annular fixing plate. The opening of the stainless steel dish is fixedly covered with a layer of stainless steel mesh 6, and the bottom plate of the stainless steel dish is a quartz filter Membrane bottom plate 7, the upper cover plate, the annular fixed plate and the perforated support plate are fixedly connected by four evenly distributed fixed rods 8, the stainless steel dish is filled with quartz wool layer 9, and the fixed The bracket 2 is fixedly connected with the upper cover plate 1 . The lower part of the fixe...

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 passive sampler. The passive sampler comprises an upper cover plate, a fixing bracket, a fixing device and a stainless steel vessel, wherein the fixing device comprises an upper annular fixing plate and a lower porous support plate; the stainless steel vessel is fixed on the porous support plate; an upper opening of the stainless steel vessel is matched and fixedly connected with an annular hole in the annular fixing plate; the opening of the stainless steel vessel is fixedly covered with a stainless steel mesh; a bottom plate of the stainless steel vessel is a quartz filter membrane bottom plate; the upper cover plate, the annular fixing plate and the porous support plate are fixedly connected through a plurality of fixing rods; the stainless steel vessel is filled with a silica wool layer; the fixing bracket is fixedly connected with the upper cover plate. The passive sampler can capture dry-deposited particulate matters in the atmosphere, the dry-deposited particulate matters in the atmosphere can be used for determining OC / EC (organic carbon / elemental carbon) ratio (carbon component characterization) of a sample, meanwhile, corresponding CO2 products are separated, captured and used for <14>C analysis.

Description

Technical field: [0001] The invention belongs to the field of air pollutant monitoring, and in particular relates to a passive sampler. Background technique: [0002] In recent years, with the continuous improvement of people's quality of life, more and more pollutants have been discharged into the environment by human beings, causing a large number of environmental pollution problems. Among various atmospheric pollutants, the distribution and transmission of persistent organic pollutants (POPs) in the atmosphere and their impact on human health have attracted worldwide attention and become a new global environmental problem. [0003] The collection of atmospheric samples is an important solution to the detection and analysis of the atmospheric environment. Only when the sampling method is correct and efficient can the analysis data be correct and reliable. According to the different power used, atmospheric samplers can be divided into active atmospheric samplers and passiv...

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): G01N1/22
Inventor 张向云李军苏涛张干
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com