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Gaseous SVOCs standard sample preparation device and preparation method thereof

A standard sample and preparation device technology, applied in the field of environmental protection, can solve the problems that restrict the accurate detection of SVOCs concentration, SVOCs sampling efficiency, instrument calibration, lack of environmental chamber evaluation, etc., and achieve the effect of simple structure

Pending Publication Date: 2019-05-14
南通东昌环保设备科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a gaseous SVOCs standard sample preparation device and preparation method thereof, to at least solve the lack of gaseous SVOCs standard samples in the prior art, the lack of necessary for the sampling efficiency of SVOCs, instrument calibration, environmental cabin evaluation, etc. standard samples, seriously restricting the technical problems of accurate detection of SVOCs concentrations in building materials and air

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  • Gaseous SVOCs standard sample preparation device and preparation method thereof
  • Gaseous SVOCs standard sample preparation device and preparation method thereof
  • Gaseous SVOCs standard sample preparation device and preparation method thereof

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Embodiment Construction

[0024] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0026] Such as figure ...

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Abstract

The invention relates to the technical field of environmental protection, and discloses a gaseous SVOCs standard sample preparation device and a preparation method thereof. The device comprises the following parts of a container internally provided with a storage chamber having an opening at the upper end, wherein a SVOCs sample emitting source is placed in the storage chamber; a cover body sealedand fastened to the opening portion at the upper end of the container and is formed with a mounting through hole; and a porous film structure embedded in the mounting through hole, wherein the gaseous SVOCs emitted by the SVOCs sample emitting source diffuse to the outside through the porous film structure and are taken out by a carrier gas of a certain flow rate to obtain a certain concentrationof gaseous SVOCs standard samples. The gaseous SVOCs standard sample preparation device has the advantages of high measurement accuracy and high measurement efficiency for gaseous SVOCs.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a gaseous SVOCs standard sample preparation device and a preparation method thereof. Background technique [0002] SVOCs refer to semi-volatile organic compounds with a boiling point in the range of 240-400 °C, with low saturated vapor pressure and strong adsorption. Compared with VOCs, SVOCs are more stable in the environment and are not easy to degrade. They can exist in the indoor environment for several years or longer, and can easily cause harm to human health. Accurately detecting the concentration of SVOCs in building materials and air is a key link in evaluating and controlling SVOCs pollution. The accurate detection of SVOCs is inseparable from SVOCs standard samples. Due to the high boiling point of SVOCs, it is mainly used to prepare solution-type standard samples, which is difficult to prepare gaseous standard samples. , instrument calibration, envi...

Claims

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Application Information

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IPC IPC(8): G01N1/28
Inventor 朱新华翟小燕
Owner 南通东昌环保设备科技有限公司
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