Particle transmission characteristics of an annular denuder ambient sampling system

Yan Ye, Chuen-Tinn Tsai, David Y H Pui*, Charles W. Lewis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


Transmission measurements have been performed on University Research Glassware, Inc. model 2000–30B glass annular denuders at 10 L/min using monodisperse particles in the 0.01–1-μm diameter size range. Through control of the aerosol charge state, particle losses due to diffusion and electrostatic effects were separately measured and theoretical descriptions of both were developed. For Boltzmann charged (atmospheric) particles in the important 0.1–1-μm diameter size range total losses averaged only a few percent or less. Particle transmission measurements also confirmed the design value of 2.5 μm for the 50% cutpoint diameter of the URG 2000-30EN cyclone inlet used with these annular denuders.

Original languageEnglish
Pages (from-to)102-111
Number of pages10
JournalAerosol Science and Technology
Issue number1
StatePublished - 1 Jan 1991

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