Mass spectrometer

Details Mass spectrometer Mass spectrometer

2007-12-18

2007-12-18

Wells, Nikita (Department: 2881)

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

C250S292000, C250S286000, C250S281000, C250S282000

Reexamination Certificate

active

10513378

ABSTRACT:
A mass spectrometer is disclosed comprising a guide wire ion guide1having an outer cylindrical electrode2and an inner guide wire electrode3. AC and DC potential differences are maintained between the outer electrode2and the inner electrode3so that ions are radially confined within the ion guide1in an annular potential well. The outer electrode2may be segmented and axial potential wells created along the length of the ion guide1may be translated along the length of the ion guide1by applying additional transient DC potentials to the segments forming the outer electrode2.

REFERENCES:
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Blauth E. W: “Dynamic mass spectrometers” Elsevier, Amsterdam XP002265934, 1966.

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