Size Distribution Measurement of Carbonaceous Particulate Matter Using a Low Pressure Impactor with Quartz Fiber Substrates
作者： Sanna Saarikoski , Anna Frey , Timo Mäkelä , Risto Hillamo
DOI: 10.1080/02786820802227329
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摘要: The collection characteristics of a small deposit area low pressure impactor (SDI) were studied in order to employ the for size distribution measurements carbonaceous matter. In this work, SDI was calibrated soft and porous quartz substrate material series laboratory experiments. efficiency curves measured by using monodisperse dioctyl sebacate particles applying two different detection methods. One method based on current carried charged test particles, other number concentrations bipolar charge equilibrium condensation particle counters. Concerning corresponding 50% (D 50 ), significant shifts toward smaller sizes found fiber substrates compared with flat plates. Also shapes differed considerably: gave less steep than plain impaction n...
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