What is the purpose of multi-angle polarized light scattering particle on-line analyzer?

It only takes 3 minutes to identify whether the particulate matter in the air comes from coal burning, automobile exhaust, dust or others. Where do the particles in the atmosphere come from, what are their components, and what are their functions? Only by understanding these problems can we prevent and control air pollution more pertinently. The reporter of Science and Technology Daily learned from the special progress meeting of the National Key R&D Plan "Development of Major Scientific Instruments and Equipment" held recently that the project of "Development and Application of Multi-angle Polarized Light Scattering Atmospheric Particulate Source Identification Online Analyzer" led by ZTE Instruments (Shenzhen) Co., Ltd. is to identify the atmospheric particulate source.

Qiu Zhigang, the person in charge of the project, told the reporter that the team pioneered the online analysis method of multi-angle polarized light scattering particles in the world, which can realize multi-feature monitoring, in-situ analysis and rapid source identification of particles, and it only takes 3 minutes to identify whether it comes from coal burning, automobile exhaust, dust or others. "We use physical methods, which is a supplement to the existing chemical methods. In addition, compared with millions of detection instruments that can only be placed in clean and tidy laboratories, this precision instrument performs online monitoring tasks outdoors, and it is cheaper and more practical. Moreover, by identifying continuous data online in real time, we can identify the changes of smog with temperature, season and illumination in the future, and provide more accurate big data for controlling air pollution. "

Qiu Zhigang revealed that through joint research, the prototype design of the world's first on-line analyzer for identifying the source of atmospheric particles by polarized light scattering has been completed.