Method and apparatus for ejecting unwanted ions in an ion trap m

Details Method and apparatus for ejecting unwanted ions in an ion trap m Method and apparatus for ejecting unwanted ions in an ion trap m

1993-05-28

1994-06-28

Berman, Jack I.

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

250291, H01J 4942

Patent

active

053249399

ABSTRACT:
A method and apparatus is described which determines a plurality of spaced discrete frequencies covering the range of frequencies of the characteristic motion of unwanted ions and processes said discrete frequencies to generate a plurality of time dependent voltage amplitude values which vary throughout the time domain such that the frequency content of said plurality of time dependent voltage amplitude values is relatively uniform over the entire time domain, and such that the magnitude associated with the discrete frequencies is relatively uniform over the frequency domain.

REFERENCES:
patent: 4761545 (1988-08-01), Marshall et al.
patent: 4818869 (1989-04-01), Weber-Grabau
patent: 4945234 (1990-07-01), Goodman et al.
patent: 5013912 (1991-05-01), Guan et al.
patent: 5107109 (1992-04-01), Stafford, Jr. et al.
patent: 5134286 (1992-07-01), Kelley
patent: 5248882 (1993-09-01), Liang

Affiliated with

Also associated with

Rating

Method and apparatus for ejecting unwanted ions in an ion trap m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for ejecting unwanted ions in an ion trap m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for ejecting unwanted ions in an ion trap m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2378818