TOWARDS ON-LINE 14C ANALYSIS OF CARBONACEOUS AEROSOL FRACTIONS

被引：5
|
作者：
Perron, Nolwenn [3 ]
Szidat, Soenke [1 ,2 ]
Fahrni, Simon [1 ,2 ,3 ]
Ruff, Matthias [1 ,3 ,4 ]
Wacker, Lukas [4 ]
Prevot, Andre S. H. [3 ]
Baltensperger, Urs [3 ]
机构：
[1] Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland
[2] Univ Bern, Oeschger Ctr Climate Change Res, CH-3012 Bern, Switzerland
[3] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[4] ETH Honggerberg, Inst Particle Phys, CH-8093 Zurich, Switzerland
来源：
RADIOCARBON | 2010年 / 52卷 / 02期
关键词：
GAS ION-SOURCE; ELEMENTAL CARBON; RADIOCARBON AMS; ORGANIC-CARBON; ATMOSPHERE; ANALYZER; CLIMATE; MICADAS; SYSTEM;
D O I：
10.1017/S003382220004577X
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
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.
引用
收藏
页码：761 / 768
页数：8
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