Radiant energy – Ionic separation or analysis – Cyclically varying ion selecting field means
Reexamination Certificate
2007-02-07
2009-06-02
Berman, Jack I (Department: 4136)
Radiant energy
Ionic separation or analysis
Cyclically varying ion selecting field means
C250S281000, C250S282000, C250S288000, C250S290000, C250S293000
Reexamination Certificate
active
07541579
ABSTRACT:
A mass spectrometer and a method of operating and building same is provided in which a hexapole component is deliberately added to a substantially quadrupole field. This can result in unwanted octopole and dipole fields also being added to the substantially quadrupole field. Modifications to the mass spectrometer as well as ways of operating the mass spectrometer are provided for dealing with the unwanted octopole and dipole fields.
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Ding Chuanfan
Douglas Donald J.
Konenkov Nikolai
Londry Frank
Berman Jack I
Ippolito Rausch Nicole
Lahive & Cockfield LLP
Laurentano Anthony A.
MDS Analytical Technologies, a business unit of MDS Inc.
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