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  4. A hyphenated SMPS-ICPMS coupling setup: Size-resolved element specific analysis of airborne nanoparticles
 
research article

A hyphenated SMPS-ICPMS coupling setup: Size-resolved element specific analysis of airborne nanoparticles

Hess, Adrian
•
Tarik, Mohamed
•
Ludwig, Christian  
2015
Journal of Aerosol Science

Physical and chemical characterization of gas borne particles in the nanometer to sub micrometer size range includes knowledge about particle size distribution and chemical composition, possibly with a high time resolution. However, most of the available techniques are offline methods and/or not able to provide such physical and chemical information simultaneously. Scanning Mobility Particle Sizer (SMPS) is a well established and widely used technique for determining size distribution and number concentration of such particles, within scan durations of a few minutes. Inductively Coupled Plasma Mass Spectrometry (ICPMS) is a highly sensitive multi element technique, allowing the determination of elemental composition with excellent defection limits and a wide dynamic concentration range. In this work, SNIPS and ICPMS were coupled to one hyphenated system which allows achieving on-line and simultaneously size and chemical information with SMPS-Lypical time resolutions. A Rotating Disk Diluter was used as sample introduction interface, and the SMPS flow concept was re designed to fulfill the requirements of both different analytical methods. The developed setup was successfully tested with a model aerosol containing airborne silver nanoparticles. Proper SMPS operation under argon atmosphere instead of air was validated. The presented setup was applied to scan the particle size range from 7 to 156 um within 120s, Similar sensitivities and efficiencies compared to that of state-of-the-art SMPS and ICPMS instruments were achieved. (C) 2015 Elsevier Ltd. All rights reserved.

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Type
research article
DOI
10.1016/j.jaerosci.2015.05.016
Author(s)
Hess, Adrian
Tarik, Mohamed
Ludwig, Christian  
Date Issued

2015

Publisher

Elsevier Sci Ltd

Published in
Journal of Aerosol Science
Volume

88

Start page

109

End page

118

Subjects

SMPS

•

ICPMS

•

Rotating Disk Diluter

•

Nanoparticle

•

Aerosol

•

Element analysis

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
GR-LUD  
Available on Infoscience
October 16, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/119889
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