HIGH-RESOLUTION SIZE ANALYSIS OF NANOPARTICLES AND IONS - RUNNING A VIENNA DMA OF NEAR-OPTIMAL LENGTH AT REYNOLDS-NUMBERS UP TO 5000

Authors
DEJUAN L DELAMORA JF
Citation
L. Dejuan et Jf. Delamora, HIGH-RESOLUTION SIZE ANALYSIS OF NANOPARTICLES AND IONS - RUNNING A VIENNA DMA OF NEAR-OPTIMAL LENGTH AT REYNOLDS-NUMBERS UP TO 5000, Journal of aerosol science, 29(5-6), 1998, pp. 617-626
Citations number
34
Categorie Soggetti
Environmental Sciences","Engineering, Chemical","Metereology & Atmospheric Sciences","Engineering, Mechanical
Journal title
Journal of aerosol science → ACNP
ISSN journal
00218502
Volume
29
Issue
5-6
Year of publication
1998
Pages
617 - 626
Database
ISI
SICI code
0021-8502(1998)29:5-6<617:HSAONA>2.0.ZU;2-Q
Abstract
A Vienna-type Differential Mobility Analyzer of near-optimal length fi tted with a sheath air flow laminarizer is run at Reynolds numbers up to 5000, yielding record resolutions for nanoparticles. Full peak widt hs at half height of 2.7% are found at a mobility diameter below 2 nm (molecular ions of tetraoctyl ammonium). Particles with diameters as s mall as 1 nm may therefore be classified in this device with resolutio ns higher than previously attainable with much larger non-diffusing pa rticles. (C) 1998 Elsevier Science Ltd. All rights reserved.