Electrostatic Axially Harmonic Orbital Trapping: A High-Performance Technique of Mass Analysis
Top Cited Papers
- 10 February 2000
- journal article
- research article
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 72 (6) , 1156-1162
- https://doi.org/10.1021/ac991131p
Abstract
This work describes a new type of mass analyzer which employs trapping in an electrostatic field. The potential distribution of the field can be represented as a combination of quadrupole and logarithmic potentials. In the absence of any magnetic or rf fields, ion stability is achieved only due to ions orbiting around an axial electrode. Orbiting ions also perform harmonic oscillations along the electrode with frequency proportional to (m/z)-1/2. These oscillations are detected using image current detection and are transformed into mass spectra using fast FT, similarly to FT ICR. Practical aspects of the trap design are presented. High-mass resolution up to 150 000 for ions produced by laser ablation has been demonstrated, along with high-energy acceptance and wide mass range.Keywords
This publication has 15 references indexed in Scilit:
- Routine Part-per-Million Mass Accuracy for High- Mass Ions: Space-Charge Effects in MALDI FT-ICRAnalytical Chemistry, 1998
- A new type of electrostatic ion trap for storage of fast ion beamsReview of Scientific Instruments, 1998
- A Gated Electrostatic Ion Trap To Repetitiously Measure the Charge and m/z of Large Electrospray IonsAnalytical Chemistry, 1997
- A Fourier transform time-of-flight mass spectrometer. A SIMION calculation approachInternational Journal of Mass Spectrometry and Ion Processes, 1995
- A two-electrode ion trap for Fourier transform ion cyclotron resonance mass spectrometryInternational Journal of Mass Spectrometry and Ion Processes, 1994
- Energy-isochronous time-of-flight mass analyzersInternational Journal of Mass Spectrometry and Ion Processes, 1994
- Ion storage in Kingdon trapRadiation Effects and Defects in Solids, 1991
- Storage of ions from laser-produced plasmasApplied Physics Letters, 1981
- A Charged Particle OscillatorNature, 1966
- A Method for the Neutralization of Electron Space Charge by Positive Ionization at Very Low Gas PressuresPhysical Review B, 1923