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US 7,459,693 B2Granted
Ion guide for mass spectrometers
AssigneeBruker Daltonics, Inc.
InventorsMelvin A. Park, Taeman Kim, Catherine Stacey, Christian Berg
Life of this patent
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Abstract
Disclosed is an improved method and apparatus for transporting ions from a first pressure region in a mass spectrometer to a second pressure region therein. More specifically, the present invention provides a segmented ion funnel for more efficient use in mass spectrometry (particularly with ionization sources) to transport ions from the first pressure region to the second pressure region.
Claims24
An ion source comprising:
- first and second ionization means for generating first ions in a direction along a first axis and second ions in a direction along a second axis, respectively;
- and
- at least one ion funnel having an entrance end, an exit end and a central axis;
- wherein neither said first axis nor said second axis intersect said central axis;
- wherein said first ions are introduced into said entrance end of said at least one ion funnel;
- and
- wherein said at least one ion funnel guides said ions from said entrance end to said exit end.
4 more elements
A method for guiding sample ions from an ion source to a mass analyzer, said method comprising the steps of:
- introducing first ions from a first ion production means into an ion funnel from a first direction;
- and
- introducing second ions from a second ion production means into said funnel from a second direction.
Dependencies are inferred from the claim text.