Electron spray ionization (ESI) source and controllable high-voltage direct current power supply for ESI source

A high-voltage DC power supply and ion source technology, applied in the field of mass spectrometers, can solve the problems of optimal adjustment, disadvantage, lack of real-time control of the electric field of the electrospray ion source, etc., and achieve the effect of improving the ionization efficiency

Active Publication Date: 2013-04-10
JIANGSU SKYRAY INSTR
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Problems solved by technology

The traditional mass spectrometer lacks real-time control of the electric field of the electrospray ion source, which is not cond...

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  • Electron spray ionization (ESI) source and controllable high-voltage direct current power supply for ESI source
  • Electron spray ionization (ESI) source and controllable high-voltage direct current power supply for ESI source
  • Electron spray ionization (ESI) source and controllable high-voltage direct current power supply for ESI source

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Embodiment Construction

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0036] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicat...

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Abstract

The invention discloses a controllable high-voltage direct current power supply for an ESI source. The controllable high-voltage direct current power supply comprises an oscillating module, a switching module, a boosting module, a voltage-multiplying rectifying module, a filtering module and an output module, wherein the oscillating module is used for conducting self-oscillation and generating switching signals, the switching module is used for conducting alternate connection under the control of switching signals to output initial alternating voltage, the boosting module is used for boosting the initial alternating voltage to obtain second alternating voltage, the voltage-multiplying rectifying module is used for boosting the second alternating voltage according to a preset multiple and rectifying the boosted voltage to output direct voltage, the filtering module is used for filtering the direct voltage, and the output module is used for outputting the filtered direct voltage. The invention also discloses the ESI source. According to the controllable high-voltage direct current power supply and the ESI source, the high voltage and a strong electric field are provided for the ESI source, so that the ionizing efficiency of samples and the transmission efficiency of produced ions can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of mass spectrometers, in particular to an ESI ion source and a controllable high-voltage DC power supply for the ESI ion source. Background technique [0002] A mass spectrometer, also known as a mass spectrometer, is an instrument used to separate and detect different isotopes. Specifically, a mass spectrometer is a type of instrument that separates and detects material composition according to the mass difference of material atoms, molecules or molecular fragments based on the principle that charged particles can be deflected in an electromagnetic field. [0003] A mass spectrometer is mainly composed of ion source, ion introduction and ion transmission, mass analyzer, detector and vacuum system. The ion source is an important part of the mass spectrometer. Its function is to ionize the analyzed sample molecules into charged ions, and make these ions converge into an ion beam with a certain geometry and ...

Claims

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Application Information

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IPC IPC(8): H01J49/16H01J49/02
Inventor 周立刘召贵潘翔熊亮
Owner JIANGSU SKYRAY INSTR
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