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dc.date.accessioned2021-03-11T20:55:59Z
dc.date.available2021-03-11T20:55:59Z
dc.date.created2020-07-01T13:40:26Z
dc.date.issued2020
dc.identifier.citationMüller, Markus MÜller, Markus Piel, Felix Gutmann, Rene Sulzer, Philipp Hartungen, Eugen Wisthaler, Armin . A novel method for producing NH4+ reagent ions in the hollow cathode glow discharge ion source of PTR-MS instruments. International Journal of Mass Spectrometry. 2020, 447:116254, 1-4
dc.identifier.urihttp://hdl.handle.net/10852/83907
dc.description.abstractProton-transfer-reaction mass spectrometry (PTR-MS) is seeing an increased use of NH4+ ions for the detection of amines and labile oxygenated organic compounds. NH4+ ions are usually generated from ammonia or ammonium-containing chemicals. We herein present a simple method for generating NH4+ reagent ions in the hollow cathode glow discharge ion source that nowadays most proton-transfer-reaction mass spectrometry (PTR-MS) instruments are equipped with. We show that NH4+ ions can be generated in high purity and yield by simply introducing a mixture of water vapor and nitrogen in the ion source. We also show that rapid switching (∼10 s loss of data) between the H3O+ and NH4+ operation modes is possible. Our new method can be easily implemented in most PTR-MS instruments that are currently in use, thus opening the possibility to easily operate the PTR-MS analyzer in the NH4+ chemical ionization mode.
dc.languageEN
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleA novel method for producing NH4+ reagent ions in the hollow cathode glow discharge ion source of PTR-MS instruments
dc.typeJournal article
dc.creator.authorMüller, Markus
dc.creator.authorMÜller, Markus
dc.creator.authorPiel, Felix
dc.creator.authorGutmann, Rene
dc.creator.authorSulzer, Philipp
dc.creator.authorHartungen, Eugen
dc.creator.authorWisthaler, Armin
cristin.unitcode185,15,12,62
cristin.unitnameMiljøvitenskap
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1818106
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=International Journal of Mass Spectrometry&rft.volume=447:116254&rft.spage=1&rft.date=2020
dc.identifier.jtitleInternational Journal of Mass Spectrometry
dc.identifier.volume447
dc.identifier.doihttps://doi.org/10.1016/j.ijms.2019.116254
dc.identifier.urnURN:NBN:no-86640
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn1387-3806
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/83907/1/M%25C3%25BCller%2Bat%2Bal.%2B2020.pdf
dc.type.versionPublishedVersion
cristin.articleid116254


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