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Towards On-Line 14C Analysis of Carbonaceous Aerosol Fractions

Published online by Cambridge University Press:  18 July 2016

Nolwenn Perron ,
Sönke Szidat ,
Simon Fahrni ,
Matthias Ruff ,
Lukas Wacker ,
André SH Prévôt  and
Urs Baltensperger
Nolwenn Perron
Affiliation:
Paul Scherrer Institut (PSI), CH-5232 Villigen, Switzerland
Sönke Szidat*
Affiliation:
Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland Oeschger Centre for Climate Change Research, University of Bern, CH-3012 Bern, Switzerland
Simon Fahrni
Affiliation:
Paul Scherrer Institut (PSI), CH-5232 Villigen, Switzerland Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland Oeschger Centre for Climate Change Research, University of Bern, CH-3012 Bern, Switzerland
Matthias Ruff
Affiliation:
Paul Scherrer Institut (PSI), CH-5232 Villigen, Switzerland Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland Institute for Particle Physics, ETH Hönggerberg, CH-8093 Zürich, Switzerland
Lukas Wacker
Affiliation:
Institute for Particle Physics, ETH Hönggerberg, CH-8093 Zürich, Switzerland
André SH Prévôt
Affiliation:
Paul Scherrer Institut (PSI), CH-5232 Villigen, Switzerland
Urs Baltensperger
Affiliation:
Paul Scherrer Institut (PSI), CH-5232 Villigen, Switzerland
*
Corresponding author. Email: szidat@iac.unibe.ch
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Abstract

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Atmospheric carbonaceous aerosol is traditionally divided into organic carbon (OC) and elemental carbon (EC). Their respective carbon amounts are usually analyzed by means of an OC/EC analyzer and their fossil and non-fossil origins can be determined by radiocarbon analysis, which has proven to be a powerful tool for carbonaceous aerosol source apportionment. Thus far, separation of OC and EC has been performed off-line by manual and time-consuming techniques. We present an on-line system that couples a commercial OC/EC analyzer with the gas ion source of the accelerator mass spectrometer (AMS) MICADAS and its CO2 feeding system. The performance achieved with reference materials and blanks are discussed to demonstrate the potential of this coupling for source apportionment of atmospheric carbonaceous particulate matter.

Type
Methods, Applications, and Developments
Information
Radiocarbon , Volume 52 , Issue 2: 20th Int. Radiocarbon Conference Proceedings , 2010 , pp. 761 - 768
Copyright
Copyright © 2010 by the Arizona Board of Regents on behalf of the University of Arizona 

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