ArticleJournal of the American Society for Mass Spectrometry2006
Linear quadrupoles with added hexapole fields.
Article in Journal of the American Society for Mass Spectrometry, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Multiplexing Quadrupole and Ion Trap Operation Modes on a "Brick" Miniature Mass Spectrometer.Molecules (Basel, Switzerland) · 2023Article
- Navigate Flying Molecular Elephants Safely to the Ground: Mass-Selective Soft Landing up to the Mega-Dalton Range by Electrospray Controlled Ion-Beam Deposition.Analytical chemistry · 2022Article
- Dipole Excitation: A New Method for Mass Analysis with a Quadrupole Mass Filter.Journal of the American Society for Mass Spectrometry · 2016Article
- Study of nonlinear resonance effect in Paul trap.Journal of the American Society for Mass Spectrometry · 2013Article
- A method of computing accurate 3D fields of a quadrupole mass filter and their use for prediction of filter behavior.Journal of the American Society for Mass Spectrometry · 2012Article
- Potential distribution and transmission characteristics in a curved quadrupole ion guide.Journal of the American Society for Mass Spectrometry · 2011Article
- Characteristics of stability boundary and frequency in nonlinear ion trap mass spectrometer.Journal of the American Society for Mass Spectrometry · 2010Article
- Mass analysis with islands of stability with linear quadrupoles incorporating higher order multipole fields.Journal of the American Society for Mass Spectrometry · 2010Article
- Quadrupole excitation of ions in linear quadrupole ion traps with added octopole fields.Journal of the American Society for Mass Spectrometry · 2008Article
- Fragmentation of ions in a low pressure linear ion trap.Journal of the American Society for Mass Spectrometry · 2007Article
- Mass analysis in islands of stability with linear quadrupoles with added octopole fields.Journal of the American Society for Mass Spectrometry · 2007Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Linear quadrupoles with added hexapole fields are described. The shifts in ion oscillation frequency caused by the addition of a hexapole field are calculated within the effective potential model. Methods to construct linear quadrupoles with added hexapole fields with exact electrode geometries and with round rods are discussed. A quadrupole with added hexapole field can be constructed with round rods by rotating two rods (say the y rods) towards an x rod. Computer simulations are used to investigate the possibility of mass analysis with quadrupoles with added hexapole fields. We find that a quadrupole with an added hexapole field in the range 2-12% can provide mass analysis provided the dc is applied with the correct polarity and value. When a rod set is constructed with round rods, other multipoles in the potential degrade the peak shape, resolution and transmission. The largest of these after the quadrupole and hexapole are a dipole and octopole term. With round rod sets, the peak shape can be improved by using different diameters for the x and y rod pairs to minimize the octopole term in the potential and by injecting ions at the field center where the dipole term is zero. Calculations of the boundaries of the stability diagram for this case show the boundaries move out, relative to those of a pure quadrupole field, but remain sharp.
Identifiers
16750382What OpenQuestion holds
Registered trials
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