aerosol monitoring Applications

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Aerosol and particle technology for aerosol generation industry

by Palas GmbH     based in Karlsruhe, GERMANY

For more than 25 years Palas has been building systems for the aerosol generation. With more than 30 different systems Palas is market leader worldwide. In particular, the high reproducibility and constancy regarding the particle size distribution and concentration of the Palas aerosol generators have to be emphasized. The Palas aerosol generators are heatable in part up to 150°C. Several types are built in pressure-resistant version and being used successfully worldwide for applications in under and overpressure up to 10 bar.

Aerosol and particle technology for pressure & temperature industries

by Palas GmbH     based in Karlsruhe, GERMANY

The reproducibility of the devices has been approved by worldwide use. In order to avoid the condensation or vaporization of the particles during the particle measurement, the isothermal and isobaric particle generation and measurement is necessary.

Aerosol and particle technology for process control industry

by Palas GmbH     based in Karlsruhe, GERMANY

In order to ensure that an industrial process can be controlled or even improved and optimized continually an analysis of the current situation in real time is necessary. Process data like temperature, pressure but also particle concentration and size distribution of a material flow can supply valuable information and be used for the regulation or the improvement of a process.

Air Quality Monitoring for the Aerosol Sampling Industry

by MSP Corporation     based in Shoreview, MINNESOTA (USA)

MSP’s aerosol instrument products include cascade impactors, virtual-impactor concentrators, personal PM samplers, micro-environmental PM Samplers, condensation particle counters, an asbestos fiber monitor, aerosol generators, electrical ionizers, differential mobility analyzers, laser particle counters and wide range particle spectrometers.

Aerosol and particle technology for filter testing industry

by Palas GmbH     based in Karlsruhe, GERMANY

Nearly 100 test rigs for the quality assurance and the development of filters are being used worldwide with great success.

Air quality monitoring

by Metrohm AG     based in Herisau, SWITZERLAND

To estimate the effects of aerosols on health and climate, it is essential to know their chemical composition. Sampling is done using two different types of aerosol collector. The first type are filter collectors that are based on the deposition of suspended particles on surfaces; the second type are powerful aerosol collectors.

Filtration for Flue Gas Analysis and CEMS

by Shanghai CMI Environmental Technology Co.,Ltd.     based in Shanghai , CHINA

Three Steps of CEMS: 1st Step: Gas Sampling 2nd Step: Gas conditioning and treatment 3rd Step: Measurement/Calibration In first step, the function is to get sample gas and forward to 2nd step for treatment. During this step, it cannot block the probes and cannot result condensation of moisture. So a filter online back flushing should be equipped in this part. The filters to be used: 1, Filter is used to ensure the stability of system and reduce the maintenance 2, Filtration Grade: usually 2 or 3 micron 3, Temp. is around 0-180 deg C 4, Back flushing gas is heated, impulse flushing 5, Filter Material: Titanium Sintered, SS316L Sintered, PTFE sintered, Ceramic Membrane and so on 2nd Step Gas Treatment: #11;The coarse filters and the liquid particle filters The coarse and fine cartridge can filter the small particles in the gas and acid aerosol things to better protect the instruments. The micron can be 0.1micron, filtration rate can be up to 99.99%, two layers can be 99.9999%

Low level measurement of VOCs and Terpenes close to the sea and the Landes Forest

by Chromatotec Group     based in Val de Virvée, FRANCE

It has been established that organic aerosol (OA) makes up for a major fraction of fine particulate matter in all region of the atmosphere. This fraction accounts approximately for half of the total PM2.5 dry mass.1,2 Primary OA is directly emitted in the troposphere from anthropological and natural sources whereas secondary OA (SOA) is formed in-situ in the atmosphere from the oxidation of biogenic or anthropogenic gas-phase precursors and subsequent partitioning of the less volatile products into the particle phase. The current number is that, on a global scale, SOA would represent around 60% of the overall OA.3 However, recent global mass-balance estimations for the removal of volatile organic compounds (VOC) suggest that this number could under-predicts SOA production.4 Recent field measurements in urban locations are also in support of a larger share, indicating that SOA is the dominant fraction of OA, with amounts considerably 20 greater than models predictions.

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