Three-dimensional quadrupole mass spectrometer

Details Three-dimensional quadrupole mass spectrometer Three-dimensional quadrupole mass spectrometer

1996-11-13

1998-05-05

Nguyen, Kiet T.

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

250281, H01J 4942

Patent

active

057478007

ABSTRACT:
A three-dimensional quadrupole mass spectrometer is suitable for preventing occurrence of a situation where the mass spectrometry cannot be conducted by an excessive existence of ions in a three-dimensional ion confining space, an amount of ions emitted from an ion source 1 is detected by a first electrode 3 of a lens, an output signal therefrom is inputted to a power supply 17 of a second electrode 4 of the lens and a focusing condition of ions caused by the lens is changed such that an amount of ions existing in the three-dimensional ion confining space does not exceed a certain level.

REFERENCES:
patent: 4755670 (1988-07-01), Syka et al.
patent: 5105081 (1992-04-01), Kelley
patent: 5302827 (1994-04-01), Foley
patent: 5572022 (1996-11-01), Schwartz et al.
patent: 5572035 (1996-11-01), Franzen

Affiliated with

Also associated with

Rating

Three-dimensional quadrupole mass spectrometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Three-dimensional quadrupole mass spectrometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three-dimensional quadrupole mass spectrometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-56957