Gas phase chromatograph system for measuring gas phase component in fluid inclusion and measuring method thereof

A technology of fluid inclusions and gas phase components, which is applied in the direction of measuring devices, material separation, and analysis of materials, etc., can solve the problems of high price, low sensitivity, and inability to contain gas phase components of fluid inclusions, and achieve good reproducibility and high sensitivity , Improve the efficiency of analysis and testing

Inactive Publication Date: 2009-05-27
INST OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI +1
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Problems solved by technology

This is expensive and the organic ingredients only get CH 4 The most important thing is that the content of organic and inorganic components in fluid inclusions can be obtained separately through two groups, which cannot really obtain the gas phase components of fluid inclusions in the same group.
There is no report on the method of determining the gas phase composition of fluid inclusions by two-dimensional gas chromatography

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  • Gas phase chromatograph system for measuring gas phase component in fluid inclusion and measuring method thereof
  • Gas phase chromatograph system for measuring gas phase component in fluid inclusion and measuring method thereof
  • Gas phase chromatograph system for measuring gas phase component in fluid inclusion and measuring method thereof

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Embodiment Construction

[0037] The two-dimensional gas chromatography system of the present invention for determining gas phase components in fluid inclusions is used to test the quartz inclusion samples of the Xiongcun copper-gold deposit in the middle section of Gangdise, Tibet. Table 3 and Table 4 list the middle section of Gangdise, Tibet Measurement results of quartz inclusion samples in the Xiongcun copper-gold deposit. Among them, XZ3-16 are quartz veins of gold (silver) polymetallic mineralization stage, and others are quartz veins of copper mineralization stage. The analysis results in Table 3 and Table 4 show that the gas phase composition of fluid inclusions in the quartz veins in the gold (silver) polymetallic mineralization stage and the quartz veins in the copper mineralization stage are basically the same, but the former CH 4 and C 2 h 6 content was significantly higher than the latter, CO 2 Much lower than the latter, showing that the ore-forming fluids in the gold (silver) polymet...

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Abstract

The invention provides a gas chromatography system for determining gas components in fluid inclusion, which adopts a modified gas chromatograph to extract trace gas from a small amount of samples (0.1g) in fluid inclusion for analysis with high sensitivity and good reproducibility. The content of H2, O2, N2, CO, CH4, CO2, H2O, C2H2, C2H6, and C3H8 can be measured through one sample injection and one bursting, and the analysis test efficiency is remarkably improved. Moreover, compared with conventional method, the invention is characterized in that not only the relative mol concentration of each component but also the absolute content can be determined, wherein the actual water amount can be combined with the liquid components in fluid inclusion to achieve the actual concentration of each ion in fluid inclusion, thus it is possible to provide more precise and direct data for the research on fluid inclusion.

Description

technical field [0001] The invention belongs to the application of a gas chromatographic device in the research on the composition of gas-liquid inclusions in geological minerals. technical background [0002] Fluid inclusions are the part of the rock-forming ore-forming fluid that is wrapped in the crystal lattice defects or cavities of the mineral during the crystallization growth process of the mineral, and is still sealed in the main mineral and has a phase boundary with the main mineral. By analyzing and studying the composition of fluid inclusions in minerals, we can gain an in-depth understanding of the properties of ancient fluids and the crystallization environment of minerals, trace the source and migration path of diagenetic and ore-forming fluids, obtain information on the evolution of magma systems and the interaction between lithosphere and mantle, and explore The genesis and metallogenic environment of ore deposits guide the exploration of ore deposits. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/46
Inventor 杨丹张道平徐文艺崔艳合王仕强
Owner INST OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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