Asymmetric ion trap

Details Asymmetric ion trap Asymmetric ion trap

1996-08-23

1997-12-02

Nguyen, Kiet T.

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

H01J 4942

Patent

active

056939418

ABSTRACT:
An ion trap having two end cap electrodes disposed asymmetrically about a center of a ring electrode. The inner surface of the end cap electrodes are conformed to an asymmetric pair of equipotential lines of the harmonic formed by the application of voltages to the electrodes. The asymmetry of the end cap electrodes allows ejection of charged species through the closer of the two electrodes which in turn allows for simultaneously detecting anions and cations expelled from the ion trap through the use of two detectors charged with opposite polarity.

REFERENCES:
patent: 5170054 (1992-12-01), Franzen
patent: 5283436 (1994-02-01), Wang
patent: 5298746 (1994-03-01), Franzen et al.
patent: 5347127 (1994-09-01), Franzen
patent: 5386113 (1995-01-01), Franzen et al.
Franzen, J., "Simulation Study of an Ion Cage with Superimposed Multipole Fields", International Journal of Mass Spectrometry and Ion Processes, 106 (1991) pp. 63-78.
Gabrielse, G., "Detection, Damping, and Translating the Center of the Axial Oscillation of a Charged Particle in a Penning Trap with Hyperbolic Electrodes", Physical Review A, vol. 29, No. 2, Feb. 1984, pp. 462-469.
March, R.E. and Hughes, R.J., "Quadrupole Storage Mass Spectrometry", Chemical Analysis, vol. 102, pp. 56-63.

Affiliated with

Also associated with

Rating

Asymmetric ion trap does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Asymmetric ion trap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asymmetric ion trap will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-803985