Atmospheric Chemistry and Physics (Jul 2023)
Technical note: Intercomparison study of the elemental carbon radiocarbon analysis methods using synthetic known samples
- X. Zhang,
- X. Zhang,
- X. Zhang,
- X. Zhang,
- J. Li,
- J. Li,
- J. Li,
- J. Li,
- S. Zhu,
- S. Zhu,
- S. Zhu,
- S. Zhu,
- J. Liu,
- P. Ding,
- S. Gao,
- S. Gao,
- S. Gao,
- S. Gao,
- C. Tian,
- Y. Chen,
- P. Peng,
- P. Peng,
- P. Peng,
- P. Peng,
- G. Zhang,
- G. Zhang,
- G. Zhang,
- G. Zhang
Affiliations
- X. Zhang
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- X. Zhang
- Guangdong Province Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- X. Zhang
- CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China
- X. Zhang
- Guangdong–Hong Kong–Macau Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- J. Li
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- J. Li
- Guangdong Province Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- J. Li
- CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China
- J. Li
- Guangdong–Hong Kong–Macau Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- S. Zhu
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- S. Zhu
- Guangdong Province Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- S. Zhu
- CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China
- S. Zhu
- Guangdong–Hong Kong–Macau Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- J. Liu
- Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
- P. Ding
- State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- S. Gao
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- S. Gao
- Guangdong Province Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- S. Gao
- CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China
- S. Gao
- Guangdong–Hong Kong–Macau Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- C. Tian
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
- Y. Chen
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200438, China
- P. Peng
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- P. Peng
- Guangdong Province Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- P. Peng
- CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China
- P. Peng
- Guangdong–Hong Kong–Macau Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- G. Zhang
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- G. Zhang
- Guangdong Province Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- G. Zhang
- CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China
- G. Zhang
- Guangdong–Hong Kong–Macau Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
- DOI
- https://doi.org/10.5194/acp-23-7495-2023
- Journal volume & issue
-
Vol. 23
pp. 7495 – 7502
Abstract
The accurate identification of elemental carbon (EC) sources in aerosol based on radiocarbon (14C) depends on the method of EC isolation. The lack of aerosol EC reference materials with “true” 14C values makes it impossible to evaluate the accuracy of various methods for the analysis of 14C-EC in aerosols. In this study, EC isolation methods were evaluated by using samples of mixed biomass burning, vehicle exhaust, and coal combustion. The results show that 14C-EC was not only related to the isolation method but also to the types and proportions of biomass sources in the sample. The hydropyrolysis (Hypy) method, which can be used to isolate a highly stable portion of ECHypy and avoid charring, is a more effective and stable approach for the matrix-independent 14C quantification of EC in aerosols. The 13C-ECHypy and non-fossil ECHypy values of Standard Reference Material (SRM) 1649b were −24.9 ‰ and 11 %, respectively.
