Work

Preliminary investigation of a water-based method for fast integrating mobility spectrometry

Year: 2017

Type: article

Abstract: A water-based condensational growth channel was developed for imaging mobility-separated particles within a parallel plate separation channel of the Fast Integrated Mobility Spectrometer (FIMS). Reported are initial tests of that system, in which the alcohol condenser of the FIMS was replaced by a water-based condensational growth channel. Tests with monodispersed sodium chloride aerosol verify that the water-condensational growth maintained the laminar flow, while providing sufficient growth for particle imaging. Particle positions mapped onto particle mobility, in accordance with theoretical expectations. Particles ranging in size from 12 nm to 100 nm were counted with the same efficiency as with a butanol-based ultrafine particle counter, once inlet and line losses were taken into account.Copyright © 2017 American Association for Aerosol Research

Source: Aerosol Science and Technology

DOI: 10.1080/02786826.2017.1338338

Authors: Steven R. Spielman, Susanne V. Hering, Chongai Kuang, Jian Wang

Institutions: Aerosol Dynamics (United States), Brookhaven National Laboratory

Language: English

Topic: Atmospheric chemistry and aerosols

Subfield: Atmospheric Science

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: bronze

Funders: U.S. Department of Energy, Office of Science, Basic Energy Sciences