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Compensation for Non-normal Ejection of Large Molecular Ions in Plasma Desorption Mass Spectrometry
Division of Ion Physics, Department of Radiation Sciences, Uppsala University.
Division of Ion Physics, Department of Radiation Sciences, Uppsala University.
Division of Ion Physics, Department of Radiation Sciences, Uppsala University.
Division of Ion Physics, Department of Radiation Sciences, Uppsala University.
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1989 (English)In: Rapid Communications in Mass Spectrometry, ISSN 0951-4198, E-ISSN 1097-0231, Vol. 3, no 6, 190-191 p.Article in journal (Refereed) Published
Abstract [en]

By introducing an Einzel lens in the field-free region of a straight time-of-flight mass spectrometer, secondary ions of large mass can be detected more efficiently in plasma-desorption mass spectrometry. This procedure compensates for the large radial velocities of large molecular ions recently observed experimentally. It is shown that large molecular ions like those of lysozyme can now be detected more efficiently, and larger molecular ions than observed before in plasma-desorption mass spectrometry (like those of bovine ovalbumin, mol. wt 45 000) can now be studied.

Place, publisher, year, edition, pages
1989. Vol. 3, no 6, 190-191 p.
National Category
Fusion, Plasma and Space Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:kau:diva-17770DOI: 10.1002/rcm.1290030607OAI: oai:DiVA.org:kau-17770DiVA: diva2:591384
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2014-11-18Bibliographically approved

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