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Device and method for rapidly detecting nitrogen dioxide

A nitrogen dioxide, detection device technology, applied in measurement devices, chemiluminescence/bioluminescence, analysis by chemical reaction of materials, etc., can solve the problems of long equilibration time, inconvenient use, etc. simple structure

Active Publication Date: 2016-07-20
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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Problems solved by technology

[0005] In order to solve the problem that the equilibration time is too long and inconvenient to use when the gas-liquid phase chemiluminescence method is used to measure nitrogen dioxide gas in the prior art, the purpose of the present invention is to provide a condition that ensures high-sensitivity detection characteristics Nitrogen dioxide rapid detection device and detection method that are convenient for on-site rapid detection and can realize rapid measurement of nitrogen dioxide gas

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  • Device and method for rapidly detecting nitrogen dioxide
  • Device and method for rapidly detecting nitrogen dioxide

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Embodiment Construction

[0025] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0026] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0027] The main purpose of the present invention is to provide a device and method capable of realizing rapid detection of nitrogen dioxide. The structure and principle of the nitrogen dioxide rapid detection device of the present invention will be described in detail below.

[0028] figure 1 It shows a structural principle diagram of a nitrogen dioxide rapid detection device according to an exemplary embodiment of the present invention, f...

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Abstract

The invention discloses a device and a method for rapidly detecting nitrogen dioxide. The device comprises a detector and a reactor, wherein the detector comprises a light-shielding housing, a photoelectric sensor module, a detector body and a light window; the light window is arranged between the light-shielding housing and the detector body; the photoelectric sensor module is arranged inside the light-shielding housing; an intake gas path and a vent gas path are formed in the detector body; the reactor comprises a bottom bracket and a reaction bed; the reaction bed is fixed on the upper surface of the bottom bracket; the reactor is fixed at the bottom of the detector body through the bottom bracket in a detachable manner; a reaction cavity is formed between the detector and the reactor; the intake gas path and the vent gas path both are communicated with the reaction cavity. The method detects with adoption of the device; the device and the method provided by the invention achieve rapid on-site measurement of nitrogen dioxide gas while ensuring high-sensitivity detection characteristics.

Description

technical field [0001] The invention relates to the technical field of rapid gas detection, in particular to a high-sensitivity rapid detection device and method for nitrogen dioxide. Background technique [0002] Nitrogen dioxide is one of the main pollutants in the atmosphere. Accurate determination of nitrogen dioxide in the ambient atmosphere is very important for understanding the mechanism of air pollution, judging the degree of air pollution, determining the source of pollution, early warning of air quality, and helping to formulate reasonable urban planning and construction. are all significant. [0003] The gas-liquid phase chemiluminescence method for measuring nitrogen dioxide has the advantages of high sensitivity, good selectivity, and high stability, and is very suitable for real-time on-line monitoring of nitrogen dioxide gas concentration in the ambient atmosphere. However, the instrument based on this method needs to use a peristaltic pump to continuously f...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/76
CPCG01N21/766
Inventor 王竹青付大友袁东张洪潘传江卢令
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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