In recent years, China’s total emissions of air pollutants have decreased year by year. However, the task of air pollution prevention and control is still very arduous for China, which is facing the double pressure of relatively unfavorable meteorological conditions and a significant increase in pollution emissions. The Air Pollution Causes and Control Group of the School of Environmental and Chemical Engineering at Shanghai University, which has long been engaged in research on the causes, sources and control of complex atmospheric pollution, used the Palas® SMPS 2050 Universal Scanning Electric Mobility particle size spectrometer to measure and analyze the particulate matter in their experiments. The Palas® device provides a graphical display of the measurement results and supports multiple interfaces and remote access, which helps to better observe the experimental data and provides strong support for the research.
Palas® U-SMPS measures aerosolized particulate matter after passing through the reaction unit.
Selection of Research Teams in Higher Education
As a national “double first-class” construction university, Shanghai University has outstanding achievements in academic research. The Air Pollution Causes and Control Group in the School of Environmental and Chemical Engineering of Shanghai University has long been engaged in the research on the causes, sources and control of air pollution, and is committed to exploring the mechanism of air pollution generation and elimination, and proposing pollution control strategies. In recent years, the group has continued to focus on the areas of formation mechanism, transformation process and pollution sources of secondary pollution of particulate matter, and has achieved abundant research results. On this occasion, they used the Palas® SMPS scanning electric mobility particle size spectrometer to measure the particles generated by the oxidation of gases by OH radicals in an oxidizing flow reactor. The Palas® SMPS not only meets the laboratory’s testing needs, but also has excellent stability and consistency. It ensures the reliability and reproducibility of the experimental results and provides a guarantee for the accuracy of the experimental data.
School of Environmental and Chemical Engineering, Shanghai University
Real-time data display, stable and reliable
The Palas® SMPS is capable of measuring particle size and number concentration of particulate matter in real time. Test data can be viewed in real time on the device display and also in a file in txt format, which allows researchers to quickly analyze experimental data in depth. This real-time data and analysis capability greatly improves research efficiency. In addition, the UF-CPC 50 can be used separately to guaranteeing the smooth running of RTD experiments.
For scientific research, the stability and reproducibility of experimental results are crucial. The Palas® SMPS system ensures the reliability of experimental results with its excellent stability and consistency. It can help researchers to be able to get consistent data in different experiments, so as to better explore the complex mechanism of air pollution.
Oxidation flow reactor，OFR
Unique Technical Advantages
The Palas® SMPS universal scanning electric mobility particle size spectrometer has a logarithmic scanning mode with no dead time and scanning times of up to 20 seconds. It also allows free selection of the scan time, size range and scan direction (upward or downward scanning). In addition, the SMPS automatically determines the residence time (delay time between the classification column and the counter), minimizing the impact of the experimental setup as no tube length measurements are required.
UF-CPC Measures Reaction Residence Time of Particulate Matter
Measurement of particle transport efficiency using an aqueous ammonium sulfate solution and 460 nm particle spheres
Excellent instruments and Timely service
The Palas® instruments provide reliable and reproducible results. When teams encounter problems with the instrument, Palas® provides guidance via SMS or remote viewing. The Palas® SMPS system is used in a variety of applications, including atmospheric condensation studies, process monitoring for nanoparticle technology, ambient atmospheric monitoring, calibration of official reference instruments for CPCs, and occupational health and workplace exposure monitoring. Palas® is ideal for research and monitoring due to its wide range of applications.
Palas® SMPS scanning electric mobility particle size spectrometer
Product Advantages
· Particle size distribution from 8 nm to 1,200 nm
· Continuous and fast scanning measurement principle
· High resolution, up to 256 channels (128 channels / 10 times particle size)
· Suitable for concentrations up to 108 particles / cm3
· Connectable to other manufacturers’ DMAs and nanoparticle counters
· Graphic display of measured values
· Intuitive operation with 7-inch touch screen and GUI
· Integrated data logger
· Supports multiple interfaces and remote access
· Low maintenance to reduce your operating costs
· Reliable functionality
Application Areas
· Aerosol Research
· Climate Research
· Emission sources looking to locate
· Workplace Measurements
· Filtration Testing
· Exhaust monitoring
Palas® regularly conducts webinars on a variety of topics to pass on its expertise in aerosol measurement technology, which are presented in detail online by Palas® technical experts and industry scholars from around the world. Register for the webinar and get the information as soon as possible!
Topic: Particle Size Spectrum and Applications
Time: Friday, November 17, 2023 15: 00 – 17: 00
Speaker: Dr. Hui Chen / Shanghai University
Topic: Source Analysis of Ultrafine Particles Based on Particle Size Spectrometry
Speaker: Ms. Jun Deng / Palas® Country Product Manager – Environmental & Automotive
Topic: Single Particle Counting Aerosol Particle Size Distribution Spectrometer Technology and Applications