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Development of an Electrostatic Precipitator for Off-Line Particle Analysis
| Content Provider | Scilit |
|---|---|
| Author | Dixkens, J. Fissan, Heinz |
| Copyright Year | 1999 |
| Description | Due to the lake of in-situ aerosol particle analysis systems, aerosol samples are taken and analyzed off-line. For detailed analysis of particle properties such as shape, morphology, and composition, off-line operating analytical tools like light microscopes, scanning electron microscopes (SEM), total reflection x-ray fluorescence (TXRF), and so on are used. The analysis must be performed on a representative sample of particles homogeneously deposited on a flat sample plate. This avoids sample preparation steps which may change the sample. In this paper we describe the design, construction, and evaluation of a continuous sampling device that deposits gasborne particles on an analytically suitable sample plate. The collection efficiency and the deposition pattern were optimized using a numerical model and experiments. It turned out that representative samples appropriate for further analysis can be taken in the particle size range from 0.03 mu m < Dp < 10 mu m. Additionally, the sampling efficiency was investigated for particles smaller than 0.03 mu m using electrical and non-electrical deposition mechanisms like diffusion and thermophoresis. The investigations performed demonstrate that the designed electrostatic precipitator (ESP) is a very useful tool for homogeneous particle deposition on analytically suitable flat sample plates and can be used as a back-up filter. Further, the ESP especially can be used in combination with a differential mobility analyzer (DMA) if detailed investigations of a narrow particle size range of a polydisperse aerosol are required. |
| Related Links | https://www.tandfonline.com/doi/pdf/10.1080/027868299304480?needAccess=true |
| Ending Page | 453 |
| Page Count | 16 |
| Starting Page | 438 |
| ISSN | 02786826 |
| e-ISSN | 15217388 |
| DOI | 10.1080/027868299304480 |
| Journal | Aerosol Science and Technology |
| Issue Number | 5 |
| Volume Number | 30 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 1999-05-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Aerosol Science and Technology Analytical Chemistry Model Aerosol Electrostatic Precipitator Plate Deposition Differential Optimized Sample |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Materials Science |
