Rare gas determination system based on quadrupole mass spectrometer

A rare gas and measurement system technology, which is applied to measurement devices, material analysis by electromagnetic means, instruments, etc., can solve the problems of cumbersome maintenance process, high cost and complex structure, and achieve simplified volume, low cost and simple structure. Effect

Inactive Publication Date: 2011-02-02
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The system's ultra-high vacuum acquisition and rare gas purification system are complex in structure, and the routine maintenance process is cumbersome and expensive

Method used

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  • Rare gas determination system based on quadrupole mass spectrometer
  • Rare gas determination system based on quadrupole mass spectrometer

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Embodiment 1

[0019] In this embodiment, the rare gas helium test is taken as an example. The rare gas measurement system based on quadrupole mass spectrometry includes components: laser sample chamber 12, molecular vacuum pump 8, mechanical pump 9, ionization vacuum gauge 7, first zirconium aluminum getter Pump 6, the second zirconium aluminum suction pump 2, the first standard tank 4 (helium 3 standard gas is housed in this tank), the second standard tank 5 (helium 4 standard gas is housed in this tank), ion pump 1, Quadrupole mass spectrometer 3, first four-way pipe 31, second four-way pipe 32, first three-way pipe 21, second three-way pipe 22, third three-way pipe 23, high temperature furnace 10 and liquid nitrogen finger 11, The laser sample chamber 12 is connected to the first port 311 of the first four-way pipe 31 through the VCR pipeline, the valve B, the third three-way pipe 23, and the second three-way pipe 22 in turn. One port is connected to the liquid nitrogen finger through th...

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Abstract

The invention discloses a rare gas determination system based on a quadrupole mass spectrometer. A laser sample room of the system is connected with a first port of a first four-way pipe through a valve B, a second port of the first four-way pipe is connected with a first impurity absorber through a valve D, a third port is connected with a first port of a first three-way pipe through a valve G, and a fourth port is connected with a molecular vacuum pump and a mechanical pump in sequence; a vacuum gage is installed between the molecular vacuum pump and the fourth port of the first four-way pipe, and a rare gas standard tank is connected between the valve G and the third port of the first four-way pipe; a second port of the first three-way pipe is connected with an ion pump through a valve J, and a third port is connected with a second impurity absorber and the quadrupole mass spectrometer in sequence. The components and the connecting pipes are connected by metal interfaces, and electric heater bands are installed on the outer surfaces of the connecting pipes of the components. The system can realize rare gas mass spectrometry under the premise of ensuring identical precision and accuracy, and has the advantages of low cost and high cost performance.

Description

Technical field: [0001] The invention of this product relates to a rare gas measurement system, in particular to a rare gas measurement system based on quadrupole mass spectrometry. Background technique: [0002] Rare gases include six elements including helium, neon, argon, krypton, xenon, and radon. Due to the unique origin, chemical inertness and relatively low abundance of rare gases, the discovery, research and application of rare gases are relatively late. However, since the trace changes of rare gas components and isotopic compositions can be preserved in geological history, revealed in current research, and can trace the represented geological and geochemical processes, rare gas geochemistry is the current international geology and geochemistry The hotspots and frontiers of geochemical research mainly focus on the basic theory of rare gases and its application in the origin of natural gas, gas source tracing, crust-mantle interaction, tectonics, and terrestrial heat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62
Inventor 龚革联周继彬孙卫东张晓东张红刘顺生
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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