Multichannel rotary extractive electrospray ionization mass spectrometry ion source

An electrospray ionization and mass spectrometry analysis technology, applied in the field of mass spectrometry analysis, can solve the problems of sample solution temperature rise, mass spectrometry signal strength, signal-to-noise ratio and stability not as good as ESI, unfavorable proteins and other natural samples detection, etc. Strength and stability, the effect of improving ionization efficiency

Inactive Publication Date: 2015-01-14
PEKING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The sample ionization ability of this method is weak, and the intensity, signal-to-noise ratio and stability of the mass spectrometry signal are not as good as ESI, and the ultrasonic frequency used in this method will increase the temperature of the sample solution, which is not conducive to the detection of natural samples such as proteins

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  • Multichannel rotary extractive electrospray ionization mass spectrometry ion source
  • Multichannel rotary extractive electrospray ionization mass spectrometry ion source
  • Multichannel rotary extractive electrospray ionization mass spectrometry ion source

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Embodiment Construction

[0032] Refer to the following Figure 1-12 Examples of the present invention will be described.

[0033] In order to make the above objects, features and advantages more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] refer to figure 1 , a multi-channel rotary extraction electrospray ionization mass spectrometry ion source provided by the present invention includes a base 1, a linear optical axis supporting part 2, a linear optical axis 3, a rear end supporting part 4, a transmission connecting part 5, a coaxial transmission Part 6, syringe pump fixing part 7, central shaft 8, syringe mounting part 9, at least 2 syringe fixing parts 10, spray device mounting part 11, metal ring 12, insulating ring 13, voltage conducting part 14, front end support part 15, Front-end connection part 16, spray device fixing part 17, at least 2 ion source installation parts 18, at lea...

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Abstract

The invention discloses a multichannel rotary extractive electrospray ionization mass spectrometry ion source. The multichannel rotary extractive electrospray ionization mass spectrometry ion source comprises an injector mounting part, at least two injector fixing parts, a spraying device mounting part, a metal ring, an insulating ring, a voltage conducting part, a front end support part, a front end connecting part, a spraying device fixing part, at least two ion source mounting parts, at least two ion source fixing parts, a spraying device, at least two spraying needles, a motor transmission part, a bearing, a motor, an injecting pump and the like. According to the ion source, the spraying needles are driven by a stepper motor to rotate to ensure that sprayed mists (electric mist or electroneutral mist) are mixed uniformly, so the ionization efficiency is improved, the strength and stability of mass spectrum signals are improved, and multicomponent or all components in a sample can be analyzed simultaneously and used for researching sample extraction or a gaseous phase / liquid phase reaction among different mists.

Description

technical field [0001] The invention relates to the field of mass spectrometry analysis, in particular to a multi-channel rotary extraction electrospray ionization mass spectrometry ion source. Background technique [0002] Mass spectrometry is currently one of the most sensitive analytical methods and is widely used in many fields such as chemistry, environment, food, and life sciences. A mass spectrometer is usually composed of a sample introduction system, an ion source, a vacuum system, a mass analyzer, a detector, a data processing system, etc., and the role of the ion source is to ionize the sample. Because sample ionization is the premise of mass spectrometry, the development of ion source technology is directly related to the application range of mass spectrometry. There are many designs of ion sources, such as electron bombardment ion source (EI), chemical ionization source (CI), field ionization / field desorption ionization source (FI / FD), fast atom bombardment sou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J49/16
Inventor 张成森罗海邱然
Owner PEKING UNIV
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