Mass spectrometry ionization source device for high boiling point compound detection

By using a design in the mass spectrometry ionization source device to directly insert a heating rod into a stainless steel electrode, combined with a high-temperature resistant sealing ring and an insulating heat-conducting ring, the problems of insufficient heating temperature and fragile ceramic ring in the detection of high-boiling-point compounds are solved, achieving highly sensitive compound detection and a simple disassembly and assembly process.

CN116259525BActive Publication Date: 2026-07-24DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES
Filing Date
2021-12-10
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing mass spectrometry ionization source devices suffer from problems such as insufficient heating temperature, fragile ceramic rings, and inconvenient disassembly and assembly in the detection of high-boiling-point compounds, making it difficult to solve the problems of high-boiling-point compound residue and adsorption.

Method used

The design of directly inserting the heating rod into the stainless steel electrode, combined with a high-temperature resistant sealing ring and an insulating thermally conductive ring, enables rapid high-temperature heating of the ionization source under vacuum conditions. The sealing and reliability of the device are ensured by the annular plate structure and the insulating thermally conductive pad.

Benefits of technology

It enables rapid and highly sensitive detection of high-boiling-point compounds, broadens the range of ionizable compounds in photoionization mass spectrometry, solves the problems of residue and adsorption, and simplifies the installation and disassembly process of the device.

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Abstract

The application discloses a mass spectrum ionization source device for high-boiling-point compound detection and belongs to the technical field of mass spectrum analyzers.The device comprises an ionization device, a heating device, a heat preservation device and a detection device.The heating rod is directly inserted into the stainless steel electrode in the ionization source, the ionization source can be rapidly heated to a high temperature without affecting the vacuum of the ionization source, the method is reliable, the installation is simple, the problems of residue and adsorption of high-boiling-point compounds are solved, and the range of ionizable compounds of photoionization mass spectrum is greatly widened.
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