Nitrogen dioxide detecting device and method

A nitrogen dioxide, detection device technology, applied in the direction of chemiluminescence/bioluminescence, analysis by chemical reaction of materials, etc., can solve the problems of low detection accuracy and poor reliability, to strengthen gas-liquid reaction and ensure stability , the effect of improving detection accuracy and reliability

Inactive Publication Date: 2014-02-05
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: provide a nitrogen dioxide detection device and detection method, solve the defects of low detection accuracy and

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  • Nitrogen dioxide detecting device and method
  • Nitrogen dioxide detecting device and method

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] Such as Figure 1-Figure 2 As shown, the nitrogen dioxide detection device of this embodiment includes a first cover plate 1 and a second cover plate 2, the first cover plate 1 and the second cover plate 2 are fixedly connected together, the first cover plate 1 and the second cover plate A closed reaction chamber 10 is formed between the p...

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Abstract

The invention provides a nitrogen dioxide detecting device and method. The nitrogen dioxide detecting device comprises a first cover plate and a second cover plate; a sealed reaction cavity is formed between the first cover plate and the second cover plate, and is internally provided with a hydrophilic film which is pasted on the first cover plate; the first cover plate is also provided with a gas intake channel and a gas exhaust channel which are communicated with the reaction cavity and are positioned at two sides of the hydrophilic film; the first cover plate is also provided with a liquid intake channel and a liquid exhaust channel which are communicated with the reaction cavity; the hydrophilic film covers ports of the liquid intake channel and the liquid exhaust channel; the second cover plate positioned in the reaction cavity is also provided with an observation window; a glass sheet is also arranged between the observation window and the reaction cavity; the observation window is internally provided with a photoelectric sensor. Light generated by the gas-liquid reaction is detected through the photoelectric sensor so as to obtain the concentration of carbon dioxide, and the detection accuracy and the detection reliability of the nitrogen dioxide detection device are improved.

Description

technical field [0001] The invention relates to a gas detection device, in particular to a nitrogen dioxide detection device and a detection method. Background technique [0002] Nitrogen dioxide is one of the main pollutants in the atmosphere. Its photolysis is an important source of tropospheric ozone. The reaction product of nitric acid with hydroxyl radicals is one of the main causes of acid rain. It can also be free from organic peroxide in the atmosphere. base reaction to generate organic nitrogen compounds causing regional environmental problems. Nitrogen dioxide has a stimulating effect on the human respiratory system and can induce bronchitis, asthma and other respiratory diseases. Nitrogen dioxide in the atmosphere mainly comes from man-made pollution such as fossil fuel combustion, automobile exhaust and industrial exhaust gas. Early warning, and help to formulate reasonable urban planning and construction are of great significance. Most of the nitrogen dioxide...

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Application Information

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IPC IPC(8): G01N21/76
Inventor 王竹青郑轶夏卫平巩小东吕婧
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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