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Ion Extraction Lenses for Mass Spectrometers

A mass spectrometer and lens technology, applied in the field of mass spectrometers, can solve the problems of inconvenient assembly and disassembly, easy contamination of the lens, failure to achieve the effect of focusing ions, etc., and achieve the effect of good focusing effect and easy disassembly, assembly and cleaning

Inactive Publication Date: 2011-12-14
JIANGSU SKYRAY INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing design of the ionization extraction lens does not achieve a good effect of focusing ions, and it is not very convenient to disassemble. However, the ionization extraction lens is easily polluted during use and needs to be disassembled and cleaned frequently

Method used

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  • Ion Extraction Lenses for Mass Spectrometers
  • Ion Extraction Lenses for Mass Spectrometers

Examples

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Embodiment Construction

[0015] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] See figure 1 As shown, an ion extracting lens for a mass spectrometer includes a first-stage lens 1, a second-stage lens 2 is arranged below the first-stage lens 1, and a third-stage lens 2 is arranged below the second-stage lens 2. A stage lens 3, the first stage lens 1, the second stage lens 2 and the third stage lens 3 are fixed through the quartz column 6, and one end of the second stage lens 2 and the third stage lens 3 is connected with a conductive electrode 7.

[0017] Further, the first-stage lens 1, the second-stage lens 2 and the third-stage lens 3 are separated by a ceramic gasket 4, and the upper end of the first-stage lens 1 and the lower end of the third-stage lens 3 are also provided with Ceramic gasket4.

[0018] Further, an elastic sheet structure 5 is installed between the ceramic gasket 4 between the second-st...

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Abstract

The invention discloses an ion extracting lens for a mass spectrometer, which includes a first-stage lens, a second-stage lens is arranged below the first-stage lens, and a third-stage lens is arranged below the second-stage lens, The first-stage lens, the second-stage lens and the third-stage lens are fixed through a quartz column, and one end of the second-stage lens and the third-stage lens is connected with a conductive electrode. The first-stage lens, second-stage lens and third-stage lens are separated by ceramic gaskets, and ceramic gaskets are also provided at the upper end of the first-stage lens and the lower end of the third-stage lens. A shrapnel structure is installed between the ceramic gasket between the second-level lens and the third-level lens, and the shrapnel structure can prevent the ceramic gasket from being damaged after being heated. The unit is small in size and works well in focus.

Description

technical field [0001] The invention relates to the field of mass spectrometers, in particular to an ion extraction lens for mass spectrometers. Background technique [0002] Mass spectrometer, also known as mass spectrometer, is an instrument for separating and detecting different isotopes, that is, according to the principle that charged particles can be deflected in an electromagnetic field, it is a type of instrument that separates and detects the composition of substances according to the mass difference of atoms, molecules or molecular fragments of substances. . The core of mass spectrometer is ion source, mass analyzer and ion detector. The ion source is a device that ionizes the sample molecules under high vacuum conditions. The ionized molecules will be further fragmented into a variety of fragment ions and neutral particles with smaller masses due to receiving too much energy. They acquire the average kinetic energy with the same energy under the action of the a...

Claims

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Application Information

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IPC IPC(8): H01J49/06
Inventor 应刚任建凯
Owner JIANGSU SKYRAY INSTR
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