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Atmospheric particulate collecting and analyzing device and atmospheric particulate collecting and analyzing method

A technology for the collection and analysis of atmospheric particulate matter, which is applied in the field of chemical analysis of atmospheric particulate matter, can solve the problem of low sample enrichment efficiency, and achieve the effects of improving sampling efficiency, high test sensitivity, and high sensitivity

Inactive Publication Date: 2015-06-03
QINGDAO UNIV OF SCI & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It has the advantages of simple operation and short sample processing cycle, but it also has the disadvantage of low sample enrichment efficiency like the method in literature 1.

Method used

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  • Atmospheric particulate collecting and analyzing device and atmospheric particulate collecting and analyzing method
  • Atmospheric particulate collecting and analyzing device and atmospheric particulate collecting and analyzing method
  • Atmospheric particulate collecting and analyzing device and atmospheric particulate collecting and analyzing method

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Embodiment Construction

[0022] like figure 1 , 2 An atmospheric particle collection and analysis device is shown, including a switching valve 2, an eluent inlet pipe 1 connected to the switching valve 2, an analyzer 3, two adapters 4, and a sampling analysis column 5 connected between the two adapters , the sampling and analyzing column 5 is composed of a tubular hollow cylinder and a fibrous filling material.

[0023] The switching valve 2 is a four-way switching valve, and the analyzer 3 is an inductively coupled plasma mass spectrometer ICP-MS.

[0024] A vibrating device is also installed on the outer surface of the sampling and analyzing column 5 .

[0025] A particle size separation device is provided between the sampling and analysis column 5 and the switching valve 2 . A particle size separation device such as an aerosol dilution impactor is installed in front of the sampling analysis column, which can be used to collect particles in a specified particle size range.

[0026] The tubular c...

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PUM

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Abstract

The invention provides an atmospheric particulate collecting and analyzing device; the atmospheric particulate collecting and analyzing device comprises a switch valve, an eluant access pipe, an analyzer, two adapters and a sampling analysis column, wherein the eluant access pipe, the analyzer and the two adapters are connected with the switch valve; the sampling analysis column is connected between the two adapters; and the sampling analysis column is composed of a tubular hollow cylinder and a fibrous filler material. The invention further discloses an atmospheric particulate collecting and analyzing method. The atmospheric particulate collecting and analyzing method disclosed by the invention is high in test sensitivity; for collecting same amount of particulates, the concentration rate of the atmospheric particulate collecting and analyzing method is 50-100 times higher than that of the traditional method; 50 times of concentration rate is achieved; a sample is collected for two days in the traditional method; but, the sample is collected and tested within about 1 hour in the atmospheric particulate collecting and analyzing method disclosed by the invention; therefore, the sampling efficiency is greatly increased; furthermore, the fibrous filter material is not damaged in the eluting process; collected particulate components are analyzed after being eluted; and thus, pollution of the sampling analysis column due to component sources is effectively controlled.

Description

technical field [0001] The invention relates to an atmospheric particle collection and analysis device and a collection and analysis method thereof, belonging to the technical field of chemical analysis of atmospheric particles. Background technique [0002] With the development of modern industrial technology, the local deterioration of human living environment is becoming more and more serious. At the same time, with the improvement of people's living standards, the impact of environmental problems on human health has received great attention. PM2.5 and nanoparticles in atmospheric particulate matter are of particular concern because of their strong penetrative ability (inhalable into the lungs) and consequent health hazards. [0003] From the perspective of environmental pollution control and maintenance of human health, the observation, origin analysis, hazard assessment, and development of control technology for the above-mentioned atmospheric particulate matter are es...

Claims

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Application Information

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IPC IPC(8): G01N27/62G01N27/626
Inventor 李伟朱彦北
Owner QINGDAO UNIV OF SCI & TECH
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