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Device and method for increasing photoionization efficiency

A technology of photoionization and high efficiency, applied in the field of photoionization, can solve the problems of short life, large volume, high cost, etc., and achieve the effects of prolonging service life, reducing pollution and improving efficiency

Inactive Publication Date: 2009-12-02
SINOMS BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the volume is larger, the cost is higher, and the life is shorter

Method used

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  • Device and method for increasing photoionization efficiency
  • Device and method for increasing photoionization efficiency
  • Device and method for increasing photoionization efficiency

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Embodiment Construction

[0050] The specific implementation steps of the present invention will be further described below in conjunction with the accompanying drawings.

[0051] A device for enhancing photoionization efficiency, the device comprising

[0052] A light source 31 (or 11), used to generate photons;

[0053] The optical resonant cavity is adjacent to the light source, and generates resonance after the photons enter, and the optical resonant cavity is formed by a semi-transparent mirror 32 (or 12) and a total reflection mirror 33 (or 13) facing each other;

[0054] The electric field is applied to the optical resonant cavity for extracting ions, including a repulsion electrode 35 and a ground electrode 36 opposite to the repulsion electrode 35 and provided with a through hole; the through hole is located in the middle of the ground electrode.

[0055] The semi-transparent mirror 32, the total reflection mirror 33, the repeller electrode 35 and the ground electrode 36 enclose a receiving c...

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Abstract

The invention relates to a method and a device for increasing photoionization efficiency. The device comprises a light source for generating photons, an optical resonator in which the photons move, an electric field applied on the optical resonator, and an introduction port communicated with the optical resonator; and because the photons are vibrated repeatedly in the resonator, the action opportunities of the photons and sample molecules can be greatly improved so as to improve the photoionization efficiency. The direction of the photon resonance in the optical resonator, the direction of feeding a sample from the introduction port and the motion direction of ions formed by the electric field form an orthogonal structure in three-dimensional space so as to reduce pollution and prolong the service life.

Description

technical field [0001] The invention relates to the field of photoionization, in particular to a device and method for enhancing photoionization efficiency. Background technique [0002] Mass spectrometry is one of the most accurate methods for molecular structure analysis, and is usually used for qualitative analysis of unknowns and quantitative detection of known components in mixtures. The ion source is the key technology of mass spectrometry. The most commonly used classic is the EI source (electron ionization), which uses a high-energy electron beam to bombard the sample, thereby ionizing the sample to generate electrons and molecular ions. The principle is as follows: [0003] M+e→M + +2e [0004] m + Continued to be bombarded by electrons to cause chemical bond breaking or molecular rearrangement, and a variety of fragment ions are generated instantly. The use of EI sources is extremely extensive, the ionization efficiency is high, and the spectral library is the...

Claims

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Application Information

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IPC IPC(8): G01N27/64
Inventor 徐国宾聂磊潘鑫渊
Owner SINOMS BIOTECH CO LTD
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