Inductively coupled plasma mass spectrometer low vacuum interface

By introducing a three-way dual-path vacuum system and a multi-layer elastic sealing bladder structure into the ICP-MS low-vacuum interface, the problems of unstable sealing and inconvenient installation of traditional interfaces are solved, enabling rapid and reliable vacuum state conversion and interface maintenance, and improving detection efficiency and accuracy.

CN120727552BActive Publication Date: 2026-06-16SICHUAN EVERGREEN PINE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN EVERGREEN PINE TECH CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

The existing ICP-MS low vacuum interface has poor sealing performance when rapidly switching between gas pressure and low vacuum state, is inconvenient to install and maintain, and lacks a transfer structure, which makes the vacuum state easy to be destroyed, resulting in poor sealing stability and leakage risk, making it difficult to meet the requirements of efficient and accurate detection.

⚗Method used

A dual-path vacuum system is constructed using a three-way pipe and two solenoid valves. An independent pre-vacuum chamber is formed by the adjustment mechanism and the high-vacuum gate valve. Combined with a multi-layer elastic sealing bladder structure and a limiting mechanism, it achieves rapid and precise docking and sealing, avoids damage to the vacuum environment, and reduces the risk of leakage.

🎯Benefits of technology

It significantly shortens interface maintenance time, improves testing efficiency, reduces the risk of testing errors, and ensures the long-term reliability and installation efficiency of the sealing structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of mass spectrometers, in particular to an inductively coupled plasma mass spectrometer low-vacuum interface, which comprises a base, and the top of the base is fixedly installed with an inductively coupled plasma mass spectrometer body. During the application, a double-path vacuum pumping system is constructed through a tee joint and double electromagnetic valves, the device body and a vacuum connection transfer box are independently controlled, when the vacuum interface is disassembled, the electromagnetic valve of the device body is closed first, the vacuum connection transfer box is independently pumped, a piston sealing plate is driven by an adjusting mechanism to cooperate with a plugging plate to form an independent pre-pumping vacuum cavity, and the vacuum connection transfer box and the device interior are connected and synchronously pumped after the interface is fixed. The design avoids the damage of the overall vacuum environment of the device when the traditional interface is disassembled, the device does not need to be pumped again, the interface maintenance time is significantly shortened, the detection interruption caused by the time consumption of vacuum recovery is reduced, and the instrument use efficiency is improved.
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