Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Yi, Xin1,2,3; Geng, Xiaofei1,2; Mo, Yangzhi1,2; Zhong, Guangcai1,2; Tang, Jiao1,2; Zhu, Sanyuan1,2; Cheng, Zhineng1,2; Zhao, Shizhen1,2; Li, Jun1,2 ; Gustafsson, Orjan4,5; Peng, Ping 'an1,2; Zhang, Gan1,2
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| Compound-specific radiocarbon analysis of benzene polycarboxylic acids for source apportionment of polyaromatic organic matter in ambient aerosols | |
| Source Publication | ATMOSPHERIC ENVIRONMENT
 |
| ISSN | 1352-2310 |
| 2023-08-15 | |
| Volume | 307Pages:8 |
| DOI | 10.1016/j.atmosenv.2023.119832 |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| Abstract | Polyaromatic organic matter (POM) is an important group of pollutants and light absorbers in ambient aerosols, which consists of a wide range of chemicals with fused benzene rings. POM in ambient aerosols is mainly derived from the incomplete combustion of fossil fuel and biomass. Source apportionment of POM is crucial for advising efficient mitigation of anthropogenic emissions, but that is a challenge due to the complicated composition of POM and ambient aerosols. Benzene polycarboxylic acids (BPCAs) have recently been introduced as molecular markers of atmospheric POM. Compound-specific radiocarbon analysis of BPCAs is expected to be a powerful tool for apportioning fossil sources and contemporary (i.e., biomass burning) sources of POM in ambient aero-sols, yet this application is still lacking. We developed a method for radiocarbon analysis of BPCAs substituted with 3-6 carboxylic groups (B6CA, B5CA, B4CAs and B3CAs). BPCAs were isolated with preparative liquid chromatography with high recoveries (>= 85%). The method is validated with reference materials with fossil and contemporary radiocarbon signatures. Successful radiocarbon analysis of BPCAs was achieved for these reference materials after correcting for the presence of average blanks (B6CA: 1.2 +/- 0.2 mu g, B5CA: 2.3 +/- 0.6 mu g, individual B4CAs: 2.7 +/- 0.2 mu g and individual B3CAs: 6.9 +/- 0.7 mu g). Source apportionment of POM based on radiocarbon |
| Keyword | Preparative liquid chromatography Compound -specific radiocarbon analysis Black carbon Polyaromatic organic matter Source apportionment |
| WOS ID | WOS:001001980900001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/74348 |
| Collection | 有机地球化学国家重点实验室 |
| Corresponding Author | Zhong, Guangcai; Zhang, Gan |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Hong Kong 510640, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Stockholm Univ, Dept Environm Sci, S-10691 Stockholm, Sweden 5.Stockholm Univ, Bolin Ctr Climate Res, S-10691 Stockholm, Sweden |
| Recommended Citation GB/T 7714 | Yi, Xin,Geng, Xiaofei,Mo, Yangzhi,et al. Compound-specific radiocarbon analysis of benzene polycarboxylic acids for source apportionment of polyaromatic organic matter in ambient aerosols[J]. ATMOSPHERIC ENVIRONMENT,2023,307:8. |
| APA | Yi, Xin.,Geng, Xiaofei.,Mo, Yangzhi.,Zhong, Guangcai.,Tang, Jiao.,...&Zhang, Gan.(2023).Compound-specific radiocarbon analysis of benzene polycarboxylic acids for source apportionment of polyaromatic organic matter in ambient aerosols.ATMOSPHERIC ENVIRONMENT,307,8. |
| MLA | Yi, Xin,et al."Compound-specific radiocarbon analysis of benzene polycarboxylic acids for source apportionment of polyaromatic organic matter in ambient aerosols".ATMOSPHERIC ENVIRONMENT 307(2023):8. |
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