Device for purifying and enriching inert gases and use method

An inert gas, enrichment technology, applied in measurement devices, sample preparation for testing, instruments, etc., can solve problems such as inability to use inert gas content analysis, lack, lack of quadrupole mass spectrometers, etc.
CN102012333AActive Publication Date: 2011-04-13CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2011-04-13

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Abstract

The invention relates to a device for purifying and enriching inert gases and a use method. On the basis of an inert gas isotopic analysis technique, a Zr-based getter material capable of working at a room temperature is used in the invention, and meanwhile, a sample quantitative control system and a 15K low temperature cold trap are additionally arranged. All function parts are reasonably arranged and matched in the device so as to make a system have dynamic high vacuum (5.0*10-8Pa) and low leakage rate. A trace of inert gases in a single gas sample can be purified and enriched in 10 minutes. The quantitative analysis of the contents of inert gases He, Ne, Ar, Kr and Xe in the gas sample is conducted by a four-pole mass spectrometer. Meanwhile, one-step sample purification is realized, all components of the inert gases are chilled and enriched by the low temperature activated carbon cold trap (15K), and the inert gases He, Ne, Ar, Kr and Xe are gradually released in a gradual heating way. The invention lays a foundation for conducting isotopic analysis on all components of the inert gases.
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Description

technical field

[0001] The invention belongs to the field of instrument analysis and detection. In particular, it relates to an inert gas purification and enrichment device and a use method. Background technique

[0002] Inert gas isotope, as an important auxiliary means to understand the source of oil and gas, has its unique features. Its development and application make inert gas isotope a branch of geochemistry. It is widely used in source research. In the field of inert gas analysis technology, many advanced laboratories at home and abroad mainly focus their technical strength on isotope analysis, and mainly use it to solve the research of mineral petrochronology and natural gas tracer research. The Lanzhou Institute of Geology, Chinese Academy of Sciences, which has long been engaged in the analysis of inert gas He and Ar isotopes in natural gas, mainly uses the method of segmented equilibrium transfer, that is, through liquid nitrogen cold traps, Zr-Al alloy furnaces...

Claims

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