Simplified mass spectrometer

Abstract

The present invention provides a simplified mass spectrometer comprising a first printed circuit board, a second printed circuit board and a grid electrode plate, wherein the grid electrode plate is disposed between the first printed circuit board and the second printed circuit board; parallel conductive strips are oppositely disposed on the first printed circuit board and the second printed circuit board; grid electrode plate is provided with grid electrodes; the oppositely disposed parallel conductive strips and the grid electrodes jointly form parallel ion traps. The simplified mass spectrometry also includes a housing communicating with a vacuum pump. In the housing, the parallel ion traps are placed in a vacuum chamber by the vacuum pump. The simplified mass spectrometer is simple instructure and forms a plurality of parallel linear ion traps. After captured, ions are uniformly detected after mass selection, thereby greatly enhancing signals and avoiding using an electron multiplier. With the above structure, parts of electronic circuits are directly mounted on the printed circuit board as a housing, which simplifies the structure of the mass spectrometer and contributes to prevention of electronic interference.

Description

technical field [0001] The invention relates to the technical field of electrical components, in particular to a high-pressure simplified mass spectrometer. Background technique [0002] figure 1 The basic construction of a general mass spectrometer is shown. To achieve mass spectrometry, it must go through several basic steps of sample introduction, ionization, ion introduction into mass analyzer for analysis and signal detection. Mass analysis is to use a mass analyzer to form an electric field or a magnetic field to separate ions in time or space according to the mass-to-charge ratio. The separated ions hit the detector one by one to form an electrical signal, which is electronically amplified and recorded by the data system to form a mass spectrum. [0003] In order to meet the needs of some on-site analysis, many people have proposed many miniaturization schemes for mass spectrometers, such as small quadrupole mass spectrometers, small time-of-flight mass spectromete...

AI Technical Summary

Problems solved by technology

However, since the electron multiplier needs to be subjected to a high voltage of more than 1 kV, ignition will occur under such a high pressure, so high vacuum pumps such as molecular pumps are still indispensable, and the cost is still high

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