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ION GUIDE FOR MASS SPECTROMETERS

  • US 20110147584A1
  • Filed: 12/13/2010
  • Published: 06/23/2011
  • Est. Priority Date: 04/04/2003
  • Status: Active Grant
First Claim
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1. An apparatus that facilitates the transmission of ions in a mass spectrometer, said apparatus comprising:

  • a plurality of segmented electrodes,wherein each segmented electrode includes alternating electrically insulating and electrically conducting regions,wherein said each segmented electrode includes an aperture for passage of sample ions therethrough,wherein said plurality of segmented electrodes are aligned along a common axis such that said electrically conducting regions of each said segmented electrode is aligned with said electrically conducting regions of adjacent said segmented electrode, andwherein said each electrically conducting region that is aligned along an axis of said each segmented electrode comprises an RF potential that is 180°

    out of phase from an RF potential of an adjacent electrically conducting region that is aligned along said axis on an adjacent segmented electrode.

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