Articles | Volume 22, issue 1
https://doi.org/10.5194/acp-22-465-2022
https://doi.org/10.5194/acp-22-465-2022
Measurement report
 | 
13 Jan 2022
Measurement report |  | 13 Jan 2022

Measurement report: Particle-size-dependent fluorescence properties of water-soluble organic compounds (WSOCs) and their atmospheric implications for the aging of WSOCs

Juanjuan Qin, Jihua Tan, Xueming Zhou, Yanrong Yang, Yuanyuan Qin, Xiaobo Wang, Shaoxuan Shi, Kang Xiao, and Xinming Wang

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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Measurement report: Investigation of pH- and particle-size-dependent chemical and optical properties of water-soluble organic carbon: implications for its sources and aging processes
Yuanyuan Qin, Juanjuan Qin, Xiaobo Wang, Kang Xiao, Ting Qi, Yuwei Gao, Xueming Zhou, Shaoxuan Shi, Jingnan Li, Jingsi Gao, Ziyin Zhang, Jihua Tan, Yang Zhang, and Rongzhi Chen
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Cited articles

Almeida, A. S., Ferreira, R. M. P., Silva, A. M. S., Duarte, A. C., Neves, B. M., and Duarte, R.: Structural features and pro-inflammatory effects of water-soluble organic matter in inhalable fine urban air particles, Environ. Sci. Technol., 54, 1082–1091, https://doi.org/10.1021/acs.est.9b04596, 2020. 
Andrade-Eiroa, Á., Canle, M., and Cerdá, V.: Environmental applications of excitation-emission spectrofluorimetry: An in-depth review I, Appl. Spectrosc. Rev., 48, 1–49, https://doi.org/10.1080/05704928.2012.692104, 2013. 
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Bahram, M., Bro, R., Stedmon, C., and Afkhami, A.: Handling of Rayleigh and Raman scatter for PARAFAC modeling of fluorescence data using interpolation, J. Chemometr., 20, 99–105, https://doi.org/10.1002/cem.978, 2006. 
Berberan-Santos, M. N. and Valeur, B.: Molecular fluorescence: Principles and Applications, second edn., Wiley-VCH, Germany, https://doi.org/10.1002/9783527650002.index, 2012. 
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Short summary
Water-soluble organic compounds (WSOCs) play important roles in atmospheric particle formation, migration, and transformation processes. In this work, size-segregated atmospheric particles were collected in a rural area of Beijing, and 3D fluorescence spectroscopy was used to investigate the optical properties of WSOCs as a means of inferring information about their atmospheric sources. It was found that these data could efficiently reveal the secondary transformation processes of WSOCs.
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