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Towards On-Line 14C Analysis of Carbonaceous Aerosol Fractions

  • Nolwenn Perron (a1), Sönke Szidat (a2) (a3), Simon Fahrni (a1) (a2) (a3), Matthias Ruff (a1) (a2) (a4), Lukas Wacker (a4), André SH Prévôt (a1) and Urs Baltensperger (a1)...
Abstract

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.

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Copyright
Corresponding author
Corresponding author. Email: szidat@iac.unibe.ch
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Radiocarbon
  • ISSN: 0033-8222
  • EISSN: 1945-5755
  • URL: /core/journals/radiocarbon
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