Unlock instant, AI-driven research and patent intelligence for your innovation.

Spatial focusing ion gate component and spatial focusing ion migration tube

An ion transfer tube, space focusing technology, applied in the field of instrument analysis, migration tube, can solve the problem of no space focusing and so on

Active Publication Date: 2013-02-13
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF8 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For traditional linear ion transfer tubes, there is currently no spatial focusing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spatial focusing ion gate component and spatial focusing ion migration tube
  • Spatial focusing ion gate component and spatial focusing ion migration tube
  • Spatial focusing ion gate component and spatial focusing ion migration tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, a space-focused ion gate assembly includes an ion gate, and a focus grid 3 parallel to the ion gate is provided on one side of the ion gate 2, and the ion gate 2 and the focus grid 3 are combined to form a space-focus ion gate assembly 1 .

[0023] The ion gate can be a Bradbury-Nielsen type ion gate (I) or a Tyndall-Powell type ion gate (II).

[0024] The distance between the ion gate and the focusing grid in the spatially focused ion gate assembly 1 is 2 mm to 1 cm.

Embodiment 2

[0026] Such as figure 2 As shown, a spatially focused ion transfer tube includes an ionization source, an ion gate, a grid, and a Faraday disk. A focusing grid 3 parallel to the ion gate is arranged on the side of the ion gate away from the ionization source, and the ion gate 2 and the focusing grid 3 are combined to form a space focusing ion gate assembly 1 for controlling ion flight.

[0027] When the spatial focusing component 1 is one, it divides the space between the ionization source of the ion transfer tube, the grid and the Faraday disk into a reaction zone and a drift zone;

[0028] When more than two space focusing components 1 are arranged in parallel, the first space focusing component 1 near the side of the ionization source divides the space between the ionization source, the grid and the Faraday disk of the ion transfer tube into a reaction zone and a migration zone , and the rest of the spatial focusing components 1 are arranged in the drift region.

[0029]...

Embodiment 3

[0032] Such as image 3 As shown, a spatially focused ion transfer tube includes an ionization source, an ion gate, a grid, and a Faraday disk. A focusing grid parallel to the ion gate is arranged on the side of the ion gate away from the ionization source, and the ion gate 2 and the focusing grid 3 are combined to form a space focusing ion gate assembly 1 for controlling ion flight.

[0033] When the spatial focusing component 1 is one, it divides the space between the ionization source of the ion transfer tube, the grid and the Faraday disk into a reaction zone and a drift zone;

[0034] When more than two space focusing components 1 are arranged in parallel, the first space focusing component 1 near the side of the ionization source divides the space between the ionization source of the ion transfer tube, the grid and the Faraday disk into a reaction zone and a migration zone , and the rest of the spatial focusing components 1 are arranged in the drift region.

[0035] Th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a spatial focusing ion gate component and a spatial focusing ion migration tube. An ion group (beam) is compressed by using voltage applied to an ion gate or a metal ring in a migration area, so that the resolution and sensitivity of the ion migration tube are improved.

Description

technical field [0001] The invention relates to a transfer tube of an ion transfer tube, in particular to an ion transfer tube with space focusing function. The migration tube adopts a special ion gate design, which can realize the spatial focusing of the ion clusters, greatly improving the resolution and sensitivity of the migration spectrum. The invention belongs to instrument analysis technology. Background technique [0002] Spatial focusing is a technology in mass spectrometry, which solves the problem of different flight times caused by different flight speeds due to differences in the initial state of ions and potentials. A substantial increase in mass spectrometric resolution can be achieved using spatial focusing. [0003] The realization of focusing in mass spectrometry is carried out under vacuum conditions, and ions rely on the accelerating electric field and inertia to fly, and the energy obtained will not be lost due to collisions. Ion transfer tube is a tec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01J49/06H01J49/26
CPCG01N27/622H01J49/26G01N27/62H01J49/061
Inventor 李海洋杜永斋王卫国
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI