High resolution size analysis of nanoparticles and ions: Running a Vienna DMA of near optimal length at Reynolds numbers up to 5000

被引：58

作者：

de Juan, L ^{[1
]}

de la Mora, JF ^{[1
]}

机构：

[1] Yale Univ, Dept Mech Engn, New Haven, CT 06520 USA

来源：

JOURNAL OF AEROSOL SCIENCE | 1998年 / 29卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0021-8502(97)10028-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A Vienna-type Differential Mobility Analyzer of near-optimal length fitted with a sheath air flow laminarizer is run at Reynolds numbers up to 5000, yielding record resolutions for nanoparticles. Full peak widths at half height of 2.7% are found at a mobility diameter below 2 nm (molecular ions of tetraoctyl ammonium). Particles with diameters as small as 1 nm may therefore be classified in this device with resolutions higher than previously attainable with much larger non-diffusing particles. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：617 / 626

页数：10

共 34 条

[1] Determination of differential mobility analyzer transfer functions using identical instruments in series [J].