Mass spectrometer

Details Mass spectrometer Mass spectrometer

2006-09-05

2006-09-05

Wells, Nikita (Department: 2881)

Radiant energy

Ionic separation or analysis

C250S282000

Reexamination Certificate

active

07102126

ABSTRACT:
A mass spectrometer is disclosed wherein a relatively energetic pulse of ions having a relatively narrow spread of mass to charge ratios are ejected from a quadrupole ion trap and received in an ion trap upstream of a Time of Flight mass analyser. The ions are collisionally cooled within the ion trap and are pulsed out of the ion trap and into an extraction region of the Time of Flight mass analyser without substantially exciting the ions. This enables improved operation with the Time of Flight mass analyser. According to another embodiment, parent ions are fragmented and the resulting fragment ions are stored in two ion traps having different low mass cut-offs. The trapping system enables MS/MS experiments to be performed with a very high duty cycle.

REFERENCES:
patent: 5399857 (1995-03-01), Doroshenko et al.
patent: 5696376 (1997-12-01), Doroshenko et al.
patent: 6285027 (2001-09-01), Chernushevich et al.
patent: 6287872 (2001-09-01), Schurenberg et al.
patent: 6504148 (2003-01-01), Hager
patent: 6545268 (2003-04-01), Verentchikov et al.
patent: 6570151 (2003-05-01), Grosshans et al.
patent: 6610976 (2003-08-01), Chait et al.
patent: 2002/0121594 (2002-09-01), Wang et al.
patent: 2003/0066958 (2003-04-01), Okumura et al.
patent: 2003/0138823 (2003-07-01), Brock et al.
patent: 2003/0141447 (2003-07-01), Verentchikov et al.
patent: 19806018 (1998-08-01), None
patent: 69419014 (1999-10-01), None
patent: 69330552 (2002-06-01), None
patent: 69901163 (2002-08-01), None
patent: 69622308 (2003-03-01), None
patent: 684628 (1995-11-01), None
patent: 1 367 631 (2003-12-01), None
patent: 11-144675 (1999-05-01), None
patent: WO 99/39368 (1999-08-01), None
patent: WO 01/15201 (2001-03-01), None

Affiliated with

Also associated with

Rating

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 Mass spectrometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mass spectrometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3544639