Stacked ring ion transport device

Abstract

The invention discloses a stacked ring ion transport device, comprising a stacked ring ion transport component used for focusing and guiding charged ions, a control module, a digital modulation voltage module, a DC voltage module and a coupling module, wherein an output end of the control module is connected with a control end of the digital modulation voltage module and a control end of the DC voltage module separately, an output end of the digital modulation voltage module and an output end of the DC voltage module are connected with an input end of the coupling module, an output end of thecoupling module is connected with the stacked ring ion transport component, and a feedback end of the coupling module is connected with an input end of the DC voltage module. The stacked ring ion transport device has the advantages of adopting a digital modulation voltage and a DC voltage for coupling driving, has wide quality detection range, and has good ion focusing.

Description

technical field [0001] The invention relates to an ion transmission technology, in particular to a stacked ring ion transmission device driven by coupling of digital modulation voltage and DC voltage. Background technique [0002] Existing stacked-ring ion transport devices are usually driven by radio frequency sine waves. This stacked-ring ion transport device driven by radio frequency sine waves has the following disadvantages: [0003] 1) The range of mass detection is not wide enough: using radio frequency sine wave drive, it is difficult to control the focusing of high-quality ions during the stacked ring ion transmission, resulting in the inability of high-quality ions to pass through the stacked ring ion transmission device, resulting in a high-quality cut-off phenomenon, which cannot It is well adapted to the needs of detection of macromolecules such as proteins. [0004] 2) Poor ion focus: Driven by radio frequency sine waves, a large potential barrier will be gene...

AI Technical Summary

Problems solved by technology

[0003] 1) The range of mass detection is not wide enough: using radio frequency sine wave drive, it is difficult to control the focusing of high-quality ions during the stacked ring ion transmission, resulting in the inability of high-quality ions to pass through the stacked ring ion transmission device, resulting in a high-quality cut-off phenomenon, which cannot Well adapted to the needs of detection of macromolecules such as proteins

[0004] 2) Poor ion focus: Driven by radio frequency sine waves, a large potential barrier will be generated in the multi-electrode area of ​​the stacked ring ion transmission, which will hinder the passage of low-mass ions, resulting in the occurrence of low-mass ion cut-off phenomenon, reducing the low-mass ions passing through the area. Probability of Stacked Ring Ion Transport Devices

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