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Means and method for guiding ions in a mass spectrometer

  • US 20040149902A1
  • Filed: 06/15/2001
  • Published: 08/05/2004
  • Est. Priority Date: 06/15/2001
  • Status: Active Grant
First Claim
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1. An apparatus for a mass spectrometer, wherein said apparatus comprises:

  • at least one pair of conducting rods;

    at least one capping electrode;

    means for applying voltages to said conducting rods; and

    means for applying voltages to said capping electrodes;

    wherein said conducting rods are aligned in parallel, wherein said at least one capping electrode bounds said conducting rods, and wherein said at least one capping electrode comprises at least one opening.

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