Ion guide, and mass spectrometry device provided with same
AssigneeHitachi High-Tech Corporation
InventorsMasuyuki Sugiyama, Hideki Hasegawa, Yuichiro Hashimoto
Life of this patent
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Abstract
In order to achieve an ion guide that has a simple structure, is resistant to contamination, and provides a wide m/z range of ions that can pass through the ion guide, the present disclosure proposes an ion guide into which ions are introduced and which is configured to focus and discharge the ions, the ion guide including a multipole electrode for forming a multipole electric field, and an axial field electrode for forming an axial electric field. The cross-sectional area perpendicular to the center axis of the ion guide of at least one of the multipole electrode or the axial field electrode varies from an inlet to an outlet of the ion guide (see FIG. 2A).
Claims11
An ion guide into which ions are introduced and which is configured to focus and discharge the ions, the ion guide comprising:
- a multipole electrode for forming a multipole electric field;
- and
- an axial field electrode for forming an axial electric field, wherein
- a cross-sectional area perpendicular to a center axis of the ion guide of at least one of the multipole electrode or the axial field electrode varies from an inlet to an outlet of the ion guide.
Dependencies are inferred from the claim text.