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Ion funnel apparatus for use in mass spectrum ionization source

A technology of ion funnel and ionization source, which is applied in the direction of electron/ion optical device, particle separator tube parts, circuits, etc., can solve the problems of complex installation process, many installation parts, large volume, etc., and achieve broad application prospects, The effect of reducing space size and compact structure space

Inactive Publication Date: 2021-04-02
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Although the appealed patents on ion funnels have their own advantages, they all have large volume, numerous installation parts, complicated installation process, and require too many adjustments to ensure a certain coaxiality

Method used

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  • Ion funnel apparatus for use in mass spectrum ionization source
  • Ion funnel apparatus for use in mass spectrum ionization source
  • Ion funnel apparatus for use in mass spectrum ionization source

Examples

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Embodiment Construction

[0021] The following non-limiting examples can enable those skilled in the art to understand the present invention more fully, but do not limit the present invention in any way.

[0022] Such as figure 1 , 2 . As shown in 3, an ion funnel device used in a mass spectrometry ionization source includes an ion funnel support platform 4 with six support rods 4.1 around the central axis 360°, and six support rods 4.1 on the ion funnel support platform 4 Set into the ion funnel pole piece 1, the ion funnel pole piece 1 is divided into three support bladders 1.2 at 120° around the central axis 360°, each support bladder 1.2 has a hole 1.1, and the three holes 1.1 are inserted into the ion funnel support Among the six support rods 4.1 on the platform 4, among the three non-adjacent support rods; the adjacent ion funnel pole pieces 1 are separated by insulating PEEK pads 3 to ensure the insulation between the adjacent ion funnel pole pieces 1 place, and finally the integral ion funnel...

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Abstract

The invention discloses an ion funnel device for use in a mass spectrum ionization source, and relates to a mass spectrum analysis instrument. The specific structure of the device comprises an ion funnel supporting table with six supporting rods, ion funnel pole pieces, an insulating PEEK pad and a fastening nut, wherein the ion funnel supporting table surrounds the central axis by 360 degrees. Ions enter from the ion funnel pole pieces with the large middle caliber in the central axis direction of the ion funnel and exit from the ion funnel pole pieces with the small middle calibers, and allthe ion funnel pole pieces are of a flat plate structure with round holes in the middle and are arranged in parallel, coaxially and insulatively. The ion funnel device is designed with the minimum size, so that the structural space of a mass spectrum ionization source is as small as possible, and the absolute size of a conventional ion funnel is reduced while the effect of the ion funnel is ensured. According to the novel ion funnel device, the space size is greatly reduced, the using effect is the same as that of a conventional ion funnel device, and the ion funnel device has wide applicationprospects in simple, convenient and small structural design of a mass spectrometry instrument.

Description

technical field [0001] The invention belongs to the field of analytical chemical instruments, in particular to a mass spectrometry instrument, in particular to an ion funnel device used in a mass spectrometer ionization source. Background technique [0002] Mass spectrometry instrument is a very high-precision chemical analysis instrument, but in order to improve its sensitivity and resolution, it is necessary to continuously improve the various components of mass spectrometry instrument in order to meet higher requirements. The most important thing for a mass spectrometer is to ionize the sample. Only a better ionization source can analyze the sample better. Therefore, it is particularly important to study the performance of the ionization source of the mass spectrometer. The ion funnel device can not only focus on the sample Transport, and also make a particularly critical contribution to sample dissociation analysis. [0003] A combined photoionization and chemical ioniz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J49/06
CPCH01J49/066
Inventor 李海洋李函蔚花磊蒋吉春吴称心徐楚婷厉梅
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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