New type of electronic nose can recognize whether the air has volatile compounds

Science Fiction Network June 15th (Liu Yazhu) has always been in addition to air pollution in addition to dust and inhaled particulate matter, sulfur dioxide, nitrogen oxide compounds, carbon monoxide, etc., as well as indoor formaldehyde, fluorine, kitchen oil fume, radioactive substances, etc. Seriously harm human health.

Recently, scientists have developed an electronic nose that can "sniff" volatile organic compounds. Taking two toluene as an example, it belongs to the colorless transparent liquid and in the list of three types of carcinogens, there are three kinds of heterogeneous bodies, but these three areomers are very similar to difficult to distinguish. come out.

Telbine is an extremely flammable and toxic organic compound. Usually, the benzene application activated carbon tube is collected in the air, and then analyzed by heat analysis and using gas color spectrum. Therefore Large precision instruments.

Researchers have developed an electronic nose of a porous metal organic framework (MOF) film. They can analyze the simple and quickly determine and distinguish between three types of dharma through machine learning algorithms, which plays an important role in environmental monitoring.

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