High pressure ms/ms system

Details High pressure ms/ms system High pressure ms/ms system

H - Electricity

01

J

H01J 49/26 (2006.01) H01J 49/42 (2006.01)

Patent

CA 2236199

A mass spectrometer system in which ions are mass selected in an RF-only quadrupole at relatively high pressure (1 to 7 torr) using FNF or SWIFT, and are then fragmented in a following collision cell which is in the same vacuum chamber, thus reducing pumping needs. The fragments can be mass analyzed in any desired way, including by another RF-only quadrupole in the same vacuum chamber and also using FNF or SWIFT. Triple MS can be performed in the same way.

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