Towards On-Line 14C Analysis of Carbonaceous Aerosol Fractions

Nolwenn Perron, Sönke Szidat, Simon Fahrni, Matthias Ruff, Lukas Wacker, André SH Prévôt, Urs Baltensperger
2010 Radiocarbon: An International Journal of Cosmogenic Isotope Research  
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
more » ... n-line system that couples a commercial OC/EC analyzer with the gas ion source of the accelerator mass spectrometer (AMS) MICADAS and its CO2feeding 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.
doi:10.1017/s003382220004577x fatcat:ksgcqaqir5cs5k5e5i3x4jx4li