First measurement of prenucleation molecular clusters

被引:60
作者
Eisele, FL
Hanson, DR [2 ]
机构
[1] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA
[2] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80307 USA
关键词
D O I
10.1021/jp9930651
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The molecular cluster ions HSO4-(H2SO4)(n-1) corresponding to the neutral species (H2SO4)(n) for n = 3-8 have been observed using a transverse chemical ionization scheme located inside a cooled flow tube. The contribution of ion-molecule clustering reactions was ascertained and readily separated from the ionization of the neutral clusters. The presence of the clusters was strongly dependent on temperature and humidity. Ratios of successive clusters thought to be representative of steady-state are reported.
引用
收藏
页码:830 / 836
页数:7
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