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Pulse sampling device and mass spectrometry equipment for mass spectrometer

A technology of sampling device and mass spectrometer, which is applied in the field of analytical instruments, can solve the problems of strong mass spectrometry signal, unfavorable and other problems, and achieve the effects of improving sensitivity and signal strength, speeding up sampling speed, and ensuring vacuum degree

Active Publication Date: 2017-07-28
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is not conducive to obtaining a strong mass spectrometric signal

Method used

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  • Pulse sampling device and mass spectrometry equipment for mass spectrometer
  • Pulse sampling device and mass spectrometry equipment for mass spectrometer
  • Pulse sampling device and mass spectrometry equipment for mass spectrometer

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Embodiment Construction

[0041] Embodiments of the present invention will be described in detail below. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0042] refer to Figure 1 to Figure 4 , in one embodiment, a pulse sampling device for a mass spectrometer, comprising a hollow capillary 10, a capillary support fixing mechanism, a centrifuge tube 12, a centrifuge tube drive mechanism and a control module, one end of the hollow capillary 10 is used to connect to In the vacuum chamber of the mass spectrometer 13, the other end is used as a sample injection port for contacting with the sample solution in the centrifuge tube 12. The hollow capillary 10 is fixed on the capillary support and fixing mechanism, and the centrifuge tube driving mechanism is controlled by The control module controls and drives the relative movement between the centrifuge tube 12 and the hollow capillary 10, so that the tip of t...

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Abstract

A pulse sample introduction apparatus used for a mass spectrometer and mass spectrum equipment possessing the apparatus are disclosed. The pulse sample introduction apparatus comprises a hollow capillary, a centrifugal tube, a driving mechanism and a control module. The driving mechanism is controlled by the control module. A driving effect of the driving mechanism makes that the centrifugal pipe and the hollow capillary generate relative motion so that a tip of the hollow capillary is contacted with a sample solution in the centrifuge tube so as to carry out sample introduction or is separated from the sample solution in the centrifuge tube. A driving mode of the driving mechanism is controlled so that the hollow capillary realizes pulse-type sample introduction. The apparatus has a simple structure, is convenient to control, can realize the pulse sample introduction of the mass spectrometer, guarantees a vacuum degree of a miniature mass spectrometer during a sample introduction process and simultaneously can increase sensitivity and signal intensity of the mass spectrometer.

Description

technical field [0001] The invention relates to the field of analytical instruments, in particular to a pulse sampling device and mass spectrometer equipment for mass spectrometers. Background technique [0002] Mass spectrometer (Mass Spectrometer, MS) is a kind of instrument that ionizes material molecules, separates them according to the mass-to-charge ratio and detects their intensity for qualitative and quantitative analysis. A complete mass spectrometer is mainly composed of a sampling system (including an ion source and an ion transmission system), a mass analyzer, a signal detection system and a vacuum system. The ion sampling system of a mass spectrometer includes an ion source and an ion transport device, which are responsible for generating gas-phase ions from a sample and transporting the sample to a mass analyzer for detection. The performance of the ion sampling system is related to the quality of the main indicators such as the sensitivity and resolution of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J49/04H01J49/26
CPCH01J49/0431H01J49/26
Inventor 余泉张建超倪凯钱翔王晓浩
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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