Particle density inferred from simultaneous optical and aerodynamic diameters sorted by composition

被引：47

作者：

Murphy, DM ^{[1
]}

Cziczo, DJ ^{[1
]}

Hudson, PK ^{[1
]}

Schein, ME ^{[1
]}

Thomson, DS ^{[1
]}

机构：

[1] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA

来源：

JOURNAL OF AEROSOL SCIENCE | 2004年 / 35卷 / 01期

关键词：

aerodynamic diameter; optical diameter; density; aerosol; particle composition;

D O I：

10.1016/S0021-8502(03)00386-0

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

On the same atmospheric particles, we have measured the aerodynamic diameter, the height of the scattered light pulse to estimate the optical diameter, and the composition with a laser ionization mass spectrometer. Different types of particles, as determined by the mass spectra, have distinct relationships between optical and aerodynamic diameters. The relative densities of organic and sulfate particles inferred from the aerodynamic and optical diameters are consistent with the composition inferred from the mass spectra. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：135 / 139

页数：5

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