Mass spectrometer

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United States of America Patent

PATENT NO 8642950
APP PUB NO 20130221242A1
SERIAL NO

13848504

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Abstract

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A mass spectrometer is disclosed comprising a quadrupole rod set ion trap wherein a potential field is created at the exit of the ion trap which decreases with increasing radius in one radial direction. Ions within the ion trap are mass selectively excited in a radial direction. Ions which have been excited in the radial direction experience a potential field which no longer confines the ions axially within the ion trap but which instead acts to extract the ions and hence causes the ions to be ejected axially from the ion trap.

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Patent Owner(s)

  • MICROMASS UK LIMITED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Green, Martin Raymond Bowdon, GB 164 899
Kenny, Daniel James Knutsford, GB 81 632
Langridge, David J Stockport, GB 75 449
Wildgoose, Jason Lee Stockport, GB 226 2259

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