Collision cell with integrated ion selector for MS/MS-time-of fl

Details Collision cell with integrated ion selector for MS/MS-time-of fl Collision cell with integrated ion selector for MS/MS-time-of fl

1997-07-24

1998-12-29

Nguyen, Kiet T.

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

H01J 4940

Patent

active

058544844

ABSTRACT:
An MS/MS-time-of-flight mass-spectrometer for colliding ions with the molecules or atoms of some collision gas. In order to assign the fragment ions to their respective parent ions, some ion selecting mechanism such as an ion gate must be used to preselect one specific mass of the primary ion spectrum. Usually the combination of both elements, a collision cell and an ion selector will need so much space that the size of the mass-spectrometer will increase, also reducing its sensitivity. This effect can be avoided, by integrating ion selector and collision cell into one unit.

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D. J. Beussman et al: "Tandem Reflectron Time-of-Flight Mass-Spectrometer Utilizing Photodissociation" Analytical Chemistry, 1995, pp. 3952-3957, vol. 67(21) American Chemical Society.
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T. J. Cornish et al: "A Curved-field Reflectron for Improved Energy Focusing of Product Ions in Time-of-Flight Mass Spectrometry" Rapid Communications in Mass Spectrometry, 1993, pp. 1037-1040 vol. 7, John Wiley & Sons.
R. D. Beck et al: "Tandem time-of-flight mass spectrometer for cluster-surface scattering experiments." Review of Scientific Instruments, 1995, pp. 4188-4197, vol. 66, American Institute of Physics.
H. Haberland et al: "Converting a reflectron time-of-flight mass spectrometer into a tandem instrument" Review of Scientific Instruments, 1997, pp. 2368-2371, vol. 62, American Institute of Physics.

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