Three dimensional quadrupole ion trap
AssigneeHitachi Instruments, Inc.
InventorStephen Palermo
Life of this patent
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Abstract
Disclosed herein is a three dimensional quadrupole ion trap for analyzing samples. The ion trap includes two spaced apart end cap electrodes being generally opposed to one another and defining a first axis between them. The ion trap includes a ring electrode between the end cap electrodes and adjacent thereto. Each of the end caps and ring electrodes are made from Molybdenum. The ion trap having a cavity defined by the end caps and ring electrodes. The ion trap including a sample injector for injecting the sample into the cavity, an rf source for filtering the ions of the sample and a DC source for selectively accelerating the filtered ions into an analyzer a cavity.
Claims5
A three dimensional quadrupole ion trap for analyzing samples, comprising
- an ion trap including at least two spaced apart end cap electrodes, the end caps being generally opposed to one another and defining a first axis between them;
- the ion trap including a ring electrode between the end cap electrodes and surrounding the first axis;
- each of the end caps and ring electrodes being made from Molybdenum;
- the ion trap having a cavity defined by the end caps and ring electrodes;
- a sample injector for injecting the sample into the cavity;
- an rf source for filtering the ions of the sample;
- and
- a DC source for selectively accelerating the filtered ions into an analyzer a cavity,
- whereby, the sample is injected into a cavity of electrodes made from Molybdenum for analysis of the sample.
Dependencies are inferred from the claim text.