A hydrodynamically optimized nano-electrospray ionization source and vacuum interface

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dc.contributor.authorPauly, M.
dc.contributor.authorSroka, M.
dc.contributor.authorReiss, J.
dc.contributor.authorRinke, G.
dc.contributor.authorAlbarghash, A.
dc.contributor.authorVogelgesang, R.
dc.contributor.authorHahne, H.
dc.contributor.authorKuster, B.
dc.contributor.authorSesterhenn, J.
dc.contributor.authorKern, K.
dc.contributor.authorRauschenbach, S.
dc.date.accessioned2016-06-28T06:14:06Z
dc.date.available2016-06-28T06:14:06Z
dc.date.issued2014
dc.description.abstractThe coupling of atmospheric pressure ionization (API) sources like electrospray ionization (ESI) to vacuum based applications like mass spectrometry (MS) or ion beam deposition (IBD) is done by differential pumping, starting with a capillary or pinhole inlet. Because of its low ion transfer efficiency the inlet represents a major bottleneck for these applications. Here we present a nano-ESI vacuum interface optimized to exploit the hydrodynamic drag of the background gas for collimation and the reduction of space charge repulsion. Up to a space charge limit of 40 nA we observe 100% current transmission through a capillary with an inlet and show by MS and IBD experiments that the transmitted ion beams are well defined and free of additional contamination compared to a conventional interface. Based on computational fluid dynamics modelling and ion transport simulations, we show how the specific shape enhances the collimation of the ion cloud. Mass selected ion currents in the nanoampere range available further downstream in high vacuum open many perspectives for the efficient use of electrospray ion beam deposition (ES-IBD) as a surface coating method.en
dc.identifier.eissn1364-5528
dc.identifier.issn0003-2654
dc.identifier.pmid24479126
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/5697
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-5317
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.subject.ddc540 Chemie und zugeordnete Wissenschaftende
dc.titleA hydrodynamically optimized nano-electrospray ionization source and vacuum interfaceen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1039/c3an01836a
dcterms.bibliographicCitation.issue8
dcterms.bibliographicCitation.journaltitleThe analyst : the analytical journal of the Royal Society of Chemistryen
dcterms.bibliographicCitation.originalpublishernameRoyal Society of Chemistryde
dcterms.bibliographicCitation.originalpublisherplaceCambridgede
dcterms.bibliographicCitation.pageend1867
dcterms.bibliographicCitation.pagestart1856
dcterms.bibliographicCitation.volume139
tub.accessrights.dnbfree
tub.affiliationFak. 5 Verkehrs- und Maschinensysteme::Inst. Strömungsmechanik und Technische Akustik (ISTA)::FG Fluidsystemdynamik - Strömungstechnik in Maschinen und Anlagende
tub.affiliation.facultyFak. 5 Verkehrs- und Maschinensystemede
tub.affiliation.groupFG Fluidsystemdynamik - Strömungstechnik in Maschinen und Anlagende
tub.affiliation.instituteInst. Strömungsmechanik und Technische Akustik (ISTA)de
tub.publisher.universityorinstitutionTechnische Universität Berlin

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