Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-7399
Full metadata record
DC FieldValueLanguage
dc.contributor.authorKampf, Christopher Johannes-
dc.contributor.authorJakob, Ronit-
dc.contributor.authorHoffmann, Thorsten-
dc.date.accessioned2022-07-13T10:03:46Z-
dc.date.available2022-07-13T10:03:46Z-
dc.date.issued2012-
dc.identifier.urihttps://openscience.ub.uni-mainz.de/handle/20.500.12030/7413-
dc.description.abstractIn this study we report the identification of bicyclic imidazoles in aqueous aerosol mimics using HPLC-ESI-MS/MS. 2,2'-Biimidazole was identified to be a major contributor to the 280 nm absorbance band observed in mixtures of glyoxal and ammonium sulfate, despite the fact that its production rate is two orders of magnitude lower than the previously reported production rates of imidazole or imidazole-2-carboxaldehyde. The molar absorptivity of 2,2'-biimidazole was determined to be (36 690 ± 998) M<sup>-1</sup> cm<sup>-1</sup>. This demonstrates the necessity of molecular product identification at trace levels to enable a better understanding of relevant absorbing species. Additionally, the formation of lower polarity products including formamides of imidazoles is proposed. The role of imidazoles and other light-absorbing species in the formation of SOA and optical properties of SOA is discussed and potentially interesting fields for future investigations are outlined.en_GB
dc.description.sponsorshipDFG, Open Access-Publizieren Universität Mainz / Universitätsmedizinde
dc.language.isoengde
dc.rightsCC BY*
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/*
dc.subject.ddc540 Chemiede_DE
dc.subject.ddc540 Chemistry and allied sciencesen_GB
dc.titleIdentification and characterization of aging products in the glyoxal/ammonium sulfate system : implications for light-absorbing material in atmospheric aerosolsen_GB
dc.typeZeitschriftenaufsatzde
dc.identifier.doihttp://doi.org/10.25358/openscience-7399-
jgu.type.dinitypearticleen_GB
jgu.type.versionPublished versionde
jgu.type.resourceTextde
jgu.organisation.departmentFB 09 Chemie, Pharmazie u. Geowissensch.de
jgu.organisation.number7950-
jgu.organisation.nameJohannes Gutenberg-Universität Mainz-
jgu.rights.accessrightsopenAccess-
jgu.journal.titleAtmospheric chemistry and physicsde
jgu.journal.volume12de
jgu.journal.issue14de
jgu.pages.start6323de
jgu.pages.end6333de
jgu.publisher.year2012-
jgu.publisher.nameEuropean Geosciences Unionde
jgu.publisher.placeKatlenburg-Lindaude
jgu.publisher.urihttp://dx.doi.org/10.5194/acp-12-6323-2012de
jgu.publisher.issn1680-7324de
jgu.publisher.issn1680-7316de
jgu.organisation.placeMainz-
jgu.subject.ddccode540de
opus.date.modified2019-08-16T09:38:18Z-
opus.subject.dfgcode09-313-
opus.organisation.stringFB 09: Chemie, Pharmazie und Geowissenschaften: Institut für Anorganische Chemie und Analytische Chemiede_DE
opus.identifier.opusid22716-
opus.institute.number0903-
opus.metadataonlyfalse-
opus.type.contenttypeKeinede_DE
opus.type.contenttypeNoneen_EN
opus.affiliatedKampf, Christopher Johannes-
opus.affiliatedHoffmann, Thorsten-
jgu.publisher.doi10.5194/acp-12-6323-2012de
jgu.organisation.rorhttps://ror.org/023b0x485-
Appears in collections:DFG-OA-Publizieren (2012 - 2017)

Files in This Item:
  File Description SizeFormat
Thumbnail
identification_and_characteri-20220712204503235.pdf2.71 MBAdobe PDFView/Open