Device for improving ion storage and ejection efficiency of electrostatic field orbitrap mass spectrometer and control method
By adopting a multi-group electrode structure and optimizing electrode gap and voltage application methods in the electrostatic field orbital trap mass spectrometer, the problem of insufficient ion storage and ejection efficiency in the prior art is solved, and more efficient ion storage and focus effects are achieved.
CN119650404AActive Publication Date: 2025-03-18HANGZHOU PUYU TECH DEV CO LTD
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Patent Information
- Application Number
- CN202311192012.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-15
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2043-09-15
AI Technical Summary
Technical Problem
The existing electrostatic field orbital trap mass spectrometers have shortcomings in ion storage and ejection efficiency, including limited ion cloud volume, severe Coulomb interaction, complex manufacturing, and low space charge capacity.
Method used
A multi-group electrode structure is adopted, including a central group electrode and a peripheral group electrode, and each group of electrodes surrounds the ion channel to form a linear ion channel. Effective storage and ejection of ions are achieved by adjusting the electrode gap and applying radio frequency and DC voltage.
Benefits of technology
It improves ion storage and ejection efficiency, simplifies structural design, reduces processing complexity, and enhances focus effect and transmission efficiency.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a device for improving ion storage and ejection efficiency of an electrostatic field orbitrap mass spectrometer and a control method. The device comprises a power supply which applies radio frequency voltage and direct current voltage to an electrode; the plurality of groups of electrodes comprise a central group of electrodes and peripheral group of electrodes, the central group of electrodes are provided with ion emitting holes, and the peripheral group of electrodes are symmetrically arranged relative to the central group of electrodes; an ion channel is enclosed by each group of electrodes, a linear ion channel is formed by the plurality of groups of electrodes which are arranged in sequence, and the power supply applies radio frequency voltage and direct current voltage to each group of electrodes; a gap Jn between the nth group of electrodes and the (n + 1) th group of electrodes satisfies a condition in a direction from the central group of electrodes to the peripheral group of electrodes. The device has the advantages of simple structure and the like.
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