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Ion source soft ionization device and method under barometric pressure

An ion source, soft ionization technology, applied in the field of mass spectrometry analysis, can solve the problems of uncertain influence of air ionization, inconsistent activity of target compounds, affecting the stability of system work, etc., to enhance qualitative analysis ability, improve quantitative analysis ability, reduce Analyzing the effect of cost

Inactive Publication Date: 2015-04-22
NINGBO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, in the analysis process of ion sources under normal atmospheric pressure, direct impact ionization or energy transfer of high-energy particles are usually used for ionization, but in the analysis process, due to the uncertain influence of air on ionization, there are large fluctuations
In addition, air at different temperatures has the problem of inconsistency in the ionization of target compounds, which ultimately affects the stability of the system.

Method used

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  • Ion source soft ionization device and method under barometric pressure
  • Ion source soft ionization device and method under barometric pressure

Examples

Experimental program
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Effect test

Embodiment 1

[0042] figure 1 Schematically shows the structure diagram of the soft ionization ion source device under the atmospheric pressure of the embodiment of the present invention, as figure 1 As shown, the ion source device includes:

[0043] The moisture supply module, the moisture supply module includes:

[0044] Airtight container 11, ultrapure water 14 is installed in the airtight container 11;

[0045] The first pipeline 12, the inlet end of the first pipeline 12 receives carrier gas, the carrier gas adopts cheap nitrogen, and the outlet end is below the water surface in the container 11;

[0046] The second pipeline 13, the inlet end of the second pipeline 13 is above the water surface in the container 11, and the outlet end communicates with the discharge chamber 21;

[0047] A temperature sensor, which is used to transmit the measured temperature of the pure water in the container to the thermostat;

[0048] A thermostat 15, the thermostat is used to adjust the temperatu...

Embodiment 2

[0059] figure 2 Schematically shows the structure diagram of the soft ionization ion source device under the atmospheric pressure of the embodiment of the present invention, as figure 2 As shown, the ion source device includes:

[0060] A propane supply module, the propane supply module is directly connected to the ion source module, specifically including:

[0061] Container 11, containing propane 16 in the container;

[0062] A temperature sensor, which is used to transmit the measured temperature of the propane in the container to the thermostat;

[0063] A thermostat 15, the thermostat is used to adjust the temperature of the propane in the container, so that the temperature of the propane transmitted by the temperature sensor reaches the set value, so that the generated gaseous propane is unified and determined, and then the gaseous state in the ion source module is guaranteed. Propane is stable and consistent.

[0064]A discharge chamber 21, the input end of the di...

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Abstract

The invention provides an ion source soft ionization device and method under barometric pressure. The ion source soft ionization device comprises a discharge cavity, a solvent providing module and an ion source module. The input end of the discharge cavity receives carrier gas, and the output end of the discharge cavity is connected with the ion source module. The solvent providing module is used for providing a solvent with the stable content and feeding the solvent into the ion source module. The ion source module is used for ionizing matter to be tested. The ion source soft ionization device and method have the advantages of being good in quality determination and quantification, high in sensitivity, good in stability and the like.

Description

technical field [0001] The invention relates to mass spectrometry, in particular to a soft ionization ion source device and method under atmospheric pressure. Background technique [0002] At present, in the analysis process of ion sources under normal atmospheric pressure, direct impact ionization or energy transfer of high-energy particles are usually used for ionization, but in the analysis process, due to the uncertain influence of air on ionization, there are large fluctuations. In addition, the ionization activity of target compounds in air at different temperatures is inconsistent, which ultimately affects the working stability of the system. Contents of the invention [0003] In order to solve the above-mentioned shortcomings in the prior art solutions, the present invention provides a soft ionization ion source device under atmospheric pressure with good qualitative and quantitative analysis and high sensitivity. [0004] The purpose of the present invention is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J49/10H01J49/00
CPCH01J49/10H01J49/0027
Inventor 俞建成闻路红赵鹏胡舜迪孙明超吴勇宁录胜
Owner NINGBO UNIV
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