APPLICATION OF DYNAMIC LIGHT SCATTERING BASED ON A MONODISPERSE MODEL AS AN IN-SITU METHOD OF MEASURING ULTRAFINE PARTICLES GROWING AND AGGREGATING IN A FLAME
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概要
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Dynamic light scattering (DLS) based on a monodisperse model was applied to ultrafine particle formation in a flame where particles grow and deform within several ms, with occasional high number density and broad size distribution. DLS was experimentally evaluated as an in-situ technique of measuring mean particle size by comparing with TEM (transmission electron microscope) photographs. The following results were obtained.1. For particles formed in a flame, a mean particle size of several tens of nanometers by DLS with monodisperse assumption was in good agreement with the volume mean diameter obtained from TEM photographs, except for particles strongly deviated to small size.2. For particles with a size distribution strongly deviated to the fine side, DLS with monodisperse assumption gives a considerably large value, around twice the volume mean diameter. This value still reflects a plausible mean size of large particles contained in the measuring volume.
- 社団法人 化学工学会の論文
- 1993-12-01
著者
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Ono Takuya
Department of Internal Medicine, Nippon Medical School Second Hospital
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Ono Takuya
Department Of Cardiology Nippon Medical School
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Ono Takuya
Department Of Chemical Engineering Faculty Of Engineering Science Osaka University
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Oshima Ryuichiro
Department Of Chemical Engineering Faculty Of Engineering Science Osaka University
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UEYAMA KOREKAZU
Department of Chemical Science and Engineering, Osaka University
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MATSUKATA Masahiko
Department of Applied Chemistry, Waseda University
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Ueyama Korekazu
Department Of Chemical Engineering Faculty Of Engineering Science Osaka University
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Matsukata Masahiko
Department Of Applied Chemistry Waseda University
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