Stacked ring ion transport device

Abstract

The invention discloses a stacked-ring ion transmission device, which includes a stacked-ring ion transmission component for focusing and guiding charged ions, a control module, a digital modulation voltage module, a DC voltage module and a coupling module, and the output terminals of the control module are respectively It is connected with the control terminal of the digital modulation voltage module and the control terminal of the DC voltage module, the output terminal of the digital modulation voltage module and the output terminal of the DC voltage module are respectively connected with the input terminal of the coupling module, and the output terminal of the coupling module is connected with the stacking ring ion transmission The components are connected, and the feedback terminal of the coupling module is connected to the input terminal of the DC voltage module; the advantage is that it adopts digital modulation voltage and DC voltage coupling drive, its mass detection range is wide, and the ion focus is good.

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

Images