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Detailed NMR analysis of water-soluble organic compounds in size-resolved particulate matter seasonally collected at a suburban site in Prague.
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SYSNO ASEP 0545955 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Detailed NMR analysis of water-soluble organic compounds in size-resolved particulate matter seasonally collected at a suburban site in Prague. Author(s) Horník, Štěpán (UCHP-M) ORCID, RID, SAI
Sýkora, Jan (UCHP-M) RID, ORCID, SAI
Pokorná, Petra (UCHP-M) ORCID, RID, SAI
Vodička, Petr (UCHP-M) RID, ORCID, SAI
Schwarz, Jaroslav (UCHP-M) RID, ORCID, SAI
Ždímal, Vladimír (UCHP-M) RID, ORCID, SAIArticle number 118757 Source Title Atmospheric Environment. - : Elsevier - ISSN 1352-2310
Roč. 267, DEC 15 (2021)Number of pages 20 s. Language eng - English Country GB - United Kingdom Keywords NMR ; organic aerosol ; size-resolved aerosol ; high-volume impactor Subject RIV DG - Athmosphere Sciences, Meteorology OECD category Meteorology and atmospheric sciences R&D Projects TK02010035 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) LM2018122 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GC20-08304J GA ČR - Czech Science Foundation (CSF) Method of publishing Open access with time embargo (16.12.2023) Institutional support UCHP-M - RVO:67985858 UT WOS 000707092200005 EID SCOPUS 85116378515 DOI 10.1016/j.atmosenv.2021.118757 Annotation The water-soluble organic compounds (WSOC) in size-resolved summer and winter aerosol collected in a Prague suburban area were analysed by 1H NMR spectroscopy. Advanced analysis of 1H NMR spectra − NMR aerosolomics − was applied, leading to the identification of 73 organic species in total. The compounds were classified into 9 chemical classes according to chemical nature, and possible aerosol sources were discussed, including an association of compounds across different classes according to common source or degradation pathway. A correlation between carbohydrates and trimethylglycine and choline was found in the coarse summer aerosol. Similar distribution profile was observed for several compounds associated to biomass burning in winter series. Multivariate statistical analysis revealed differences in chemical composition between both seasons and identified the main features of the fine and coarse aerosol matter. The group separation according to the season of sample collection was found mainly affected by levoglucosan while the content of carbohydrates in the coarse aerosol fractions impacted the clustering based on the particle size. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2022 Electronic address http://hdl.handle.net/11104/0323181
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