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Passive sampling device of multi-component atmospheric organic pollutants

A passive sampling device and a technology for organic pollutants, which are applied to sampling devices and other directions, can solve the problems of inability to collect at the same time, and achieve the effects of simple operation, guaranteed accuracy and simple operation.

Inactive Publication Date: 2013-02-27
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention mainly aims at the disadvantage that traditional passive sampling devices cannot simultaneously collect multiple types of organic pollutants in the air, and provides a passive sampling device for multi-component atmospheric organic pollutants, which can be used in indoor and outdoor environments to simultaneously enrich The passive collection of volatile and semi-volatile organic pollutants in the atmosphere has the advantages of no power, low cost, safety and portability, and is suitable for passive atmospheric monitoring technology in my country's current complex atmospheric environment

Method used

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  • Passive sampling device of multi-component atmospheric organic pollutants
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  • Passive sampling device of multi-component atmospheric organic pollutants

Examples

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Embodiment 1

[0041] This embodiment is used in the collection of samples of volatile substances in the atmosphere in the atmosphere. The steps are as follows:

[0042] (1) Purifying the embedded sieve cylinder 4 before using the adsorbing material to remove the organic matter that may exist in the adsorbent, and use the thermal admission or solvents to extract purification method according to the characteristics of unused adsorbents.The purified embedded sieve tube 4 was quickly loaded into a 40ml brown VOCS bottle, and it was stored at low temperature.

[0043] (2) Carry the present invention to the scene, place or put this sampling device at the corresponding sampling point, remove the inner sieve in the seal bottle and put it in the embedded groove of the sampling device, and perform different types of components for different types of componentscollection.

[0044] (3) In the pollution area, the collection time is 8h. After the sample collection is completed, the embedded sieve tube is ins...

Embodiment 2

[0048] The above -mentioned sign of this invention and its embodiments are described. The description is not restricted. What is shown in the picture is only one of the implementation of the invention. The actual structure is not limited to this, and the invention is embedded in the invention.One of the four types of the filled material inside the formula 4 is the one in the activated carbon, molecular sieve, silicone, or polymer porous resin adsorption agent. These four are also selected according to the type of organic pollutants.The types of organic pollutants can be selected, and this application document is no longer described one by one.Therefore, if ordinary technical personnel in the art are revealed, without being separated from the purpose of the invention creation, the structure and embodiments similar to the technical solution should be designed without creative design.Essence

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Abstract

The invention discloses a passive sampling device of multi-component atmospheric organic pollutants and belongs to the field of sampling devices of organic pollutants in the air. The passive sampling device comprises a top hook, a sampling device body, baffles, a connection rod and an embedded screen drum. The sampling device body is of a layer structure formed by overlaying N baffles from top to bottom, and the baffles are fixedly connected through a connection rod in the middle of the sampling device body; the baffles are of cap-shaped structures with the middle protruding upwards and the periphery dropping; the baffle on the uppermost layer is in thread connection with the connection rod; and the embedded type screen drum is vertically placed in the sampling device body. The passive sampling device can collect organic pollutants different in type, simultaneously can obtain parallel samples of the atmosphere, can meet the pollution investigation and monitoring requirements on characteristic pollutants of volatile components and semi-volatile components like polycyclic aromatic hydrocarbon in chemical-industry type pollution sites and has the advantages of being low in cost, easy and convenient to operate and convenient to carry.

Description

Technical field [0001] The present invention is the field of sampling devices for organic pollutants in the air. More specifically, it is more specifically involved in the use of molecular diffusion and penetration principles that can collect indoors, volatility in external air air, and semi -volatile.Sample device. Background technique [0002] With the continuous expansion of urban scale in my country in recent years and the adjustment of economic structure, urban air pollution has shown a regional and compound pollution characteristics, which has brought many harms to the health and safety of the city.Among them, the toxic and units in the atmosphere can be divided into volatile components and semi -wave -oriented components from the type.Monitoring needs of large -scale and multi -pollution components.For example, in the relevant standards and technical specifications that have been released in China, the standard specifications involved in atmospheric monitoring mainly inclu...

Claims

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Application Information

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IPC IPC(8): G01N1/22
Inventor 赵欣冯艳红林玉锁王晓宁应蓉蓉万金忠郑丽萍祝欣李杰
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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