A novel multipass oa-TOF mass spectrometer

[Display omitted] •We introduce a multipass oa-TOF geometry utilising a quadro-logarithmic potential.•A theoretical treatment of the physics of the analyser is given.•A complete classification of the space of trajectories is developed.•We show a specific trajectory with an effective path length of o...

Full description

Saved in:
Bibliographic Details
Published inInternational journal of mass spectrometry Vol. 377; pp. 309 - 315
Main Authors Richardson, K., Hoyes, J.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.02.2015
Subjects
High resolution
Multipass
Orthogonal acceleration
Time-of-flight mass spectrometry (TOF-MS)
Orthogonal acceleration
High resolution
Multipass
Time-of-flight mass spectrometry (TOF-MS)
Online AccessGet full text

Cover

More Information
Summary:[Display omitted] •We introduce a multipass oa-TOF geometry utilising a quadro-logarithmic potential.•A theoretical treatment of the physics of the analyser is given.•A complete classification of the space of trajectories is developed.•We show a specific trajectory with an effective path length of over 10m. FT mass spectrometers have ultimate resolutions exceeding those of conventional TOF mass spectrometers. However in order to achieve this, long acquisition times are required (of up to several seconds in some cases). In contrast, high performance TOF mass spectrometers have typical flight times of tens of microseconds. This makes it possible, for example, to profile ion mobility separations lasting only a few milliseconds. In this paper we describe a novel oa-TOF geometry, utilising the quadro-logarithmic potential familiar from Orbitrap mass spectrometry, which promises to combine the high resolution of FT instruments with the speed of TOF analysis. The results of a theoretical investigation of some of the properties of this analyser will be presented.
ISSN:1387-3806
1873-2798
DOI:10.1016/j.ijms.2014.08.031