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Ionization device and application thereof

An ionization and sample transmission technology, applied in the field of ionization devices, can solve the problems of difficult to ignore the matrix effect, the inability to analyze powdery samples, and the difficulty of accurate quantification, so as to enrich the ionization pathway, avoid the solvation effect, and improve the ionization efficiency effect

Pending Publication Date: 2020-08-14
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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Problems solved by technology

[0006] The analysis ionization efficiency based on the existing ion source mainly depends on the property state of the analyte; the ion focusing and transmission system in space needs to be improved; there are certain problems in the repeatability, and it is difficult to accurately quantify; the matrix effect is difficult to ignore; high speed is required Air flow, unable to analyze powdery samples, this application provides an ionization device and its application

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  • Ionization device and application thereof
  • Ionization device and application thereof

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Embodiment Construction

[0026] Hereinafter, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. According to these detailed descriptions, those skilled in the art can clearly understand the present application and can implement the present application. Without departing from the principle of the present application, the features in different embodiments can be combined to obtain new implementations, or some features in certain embodiments can be replaced to obtain other preferred implementations.

[0027] see Figure 1~2 , the present application provides an ionization device, including a sample transmission tube 9, a flow meter 7 and an air extraction component 8;

[0028] The sample transmission pipe 9 is connected to a flow meter 7 , and the flow meter 7 is connected to an air extraction assembly 8 .

[0029] Sample transfer tube 9: stainless steel, outer diameter 4mm; inner diameter 3mm; length 500mm

[0030] Sealing sleeve 14...

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Abstract

The invention belongs to the technical field of substance detection, particularly relates to an ionization device and application thereof, and aims to solve the problems that the analysis ionization efficiency of the existing ion source mainly depends on the property state of an object to be detected, ions need to be improved in a space focusing and transmission system, the repeatability has problems and accurate quantification is difficult, the matrix effect is difficult to ignore and a powdery sample cannot be analyzed due to high-speed airflow needs to be used. The provided ionization device comprises a sample transmission pipe, a flow meter and an air exhaust assembly, the sample transmission pipe is connected with the flow meter, and the flow meter is connected with the air exhaust assembly. As for a direct ion source technology, due to the fact that the solvation effect and rich ionization ways can be effectively avoided, the chemical structure of a sample can be changed to improve the ionization efficiency.

Description

technical field [0001] The application belongs to the technical field of substance detection, and in particular relates to an ionization device and its application. Background technique [0002] The traditional ion source analysis method is to extract the organic matter on the solid surface to the liquid phase by using the area extraction technology on the solid surface, and then select the appropriate method for analysis. This method is time-consuming and laborious, and it is difficult to ensure the accurate distribution of organic matter on the solid surface during the extraction process. The biggest feature of the new direct ion source is that it can be operated under atmospheric pressure. Since this analysis method does not require complicated pretreatment of the sample itself, it has the characteristics of simple and fast operation. Based on the above advantages, this ion source can be applied to the in-situ analysis of solid surface samples, and can also directly extr...

Claims

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Application Information

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IPC IPC(8): H01J49/16H01J49/26
CPCH01J49/168H01J49/26
Inventor 龚涛钟伦超钱翔唐飞王晓浩
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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