Simultaneous determination of individual ambient particle size, hygroscopicity and composition

被引：49

作者：

Buzorius, G ^{[1
]}

Zelenyuk, A ^{[1
]}

Brechtel, F ^{[1
]}

Imre, D ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Dept Environm Sci, Div Atmospher Sci, Upton, NY 11973 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2002年 / 29卷 / 20期

关键词：

D O I：

10.1029/2001GL014221

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

[1] A new system for simultaneous determination of individual particle size, hygroscopicity, and composition of internally and externally mixed aerosols is presented. An HTDMA is used to select particles according to their size and hygroscopicity for compositional analysis by a single particle mass spectrometer. The capability of the system is demonstrated on a laboratory generated aerosol consisting of polystyrene latex spheres coated with a layer of ammonium nitrate to represent an internally mixed aerosol with controllable hygroscopicity that is externally mixed with pure ammonium nitrate particles. Results are presented from an ambient study illustrating the sensitivity of the system and the capability to provide detailed information on individual atmospheric particles within a short sampling time.

引用

页码：35 / 1

页数：4

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