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APPARATUS FOR GENERATING GASEOUS CO2 FROM CARBONATE FOR IN SITU ISOTOPIC ANALYSIS (delta13C AND delta18O) AND RELATED

A device, gaseous technique, used in the preparation of gaseous samples intended to be examined by isotopic analysis, capable of solving problems such as susceptibility to organic contamination

Pending Publication Date: 2022-03-22
UNIV DE BOURGOGNE (FR) +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] Another disadvantage of prior art techniques for preparing gaseous samples is the gas chromatography step on gaseous samples prior to isotope analysis
[0013] Another disadvantage of prior art techniques for preparing gaseous samples is that they are sensitive to organic contamination present on surfaces or in solid samples

Method used

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  • APPARATUS FOR GENERATING GASEOUS CO2 FROM CARBONATE FOR IN SITU ISOTOPIC ANALYSIS (delta13C AND delta18O) AND RELATED
  • APPARATUS FOR GENERATING GASEOUS CO2 FROM CARBONATE FOR IN SITU ISOTOPIC ANALYSIS (delta13C AND delta18O) AND RELATED
  • APPARATUS FOR GENERATING GASEOUS CO2 FROM CARBONATE FOR IN SITU ISOTOPIC ANALYSIS (delta13C AND delta18O) AND RELATED

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Embodiment Construction

[0122] Since the embodiments described in this context are by no means restrictive, variants of the invention can especially be considered to include only the selection of the described features in isolation from the other described features (even if the selection is in the sentence including these other features. separate), as long as the selection of the feature is sufficient to confer a technical advantage or to distinguish the invention from the prior art. This option includes at least one preferred functional feature with no structural details or with only a part of the structural details which are sufficient to confer a technical advantage or to distinguish the invention relative to the state of the art.

[0123] refer to figure 1 , describes an apparatus 1 for the preparation of a gaseous sample obtained from a solid sample 2 . The apparatus 1 comprises a laser source 3 arranged to emit a laser beam 4 capable of producing calcining and / or combustion of a part of a soli...

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Abstract

The invention relates to a device for preparing a gaseous sample obtained from a solid sample. The apparatus comprises:-a laser source arranged to emit a laser beam capable of producing calcination and / or combustion of a portion of the solid sample,-means arranged to collect a gaseous sample of gases emitted during calcination and / or combustion of a portion of the solid sample; the apparatus is characterized in that the irradiance of the laser beam is less than 5 MW / cm2 within a given impact zone on the surface of the sample, and the apparatus comprises an optical fiber for propagating the laser beam between the laser source and the given impact zone on the surface of the sample.

Description

technical field [0001] The present invention relates to the preparation of gaseous samples from solid samples, in particular to the preparation of gaseous samples intended to be examined by isotopic analysis, for example by mass spectrometry or spectroscopy. [0002] In particular, the invention relates to the preparation of gaseous samples from solid samples, mainly minerals containing carbon and / or oxygen. [0003] More specifically, the present invention relates to the preparation of gaseous samples from rock samples containing carbonates intended to be examined by isotopic analysis of carbon and / or oxygen. Background technique [0004] Gaseous sample preparation for the isotopic analysis of solid samples, especially mineral samples, by chemical treatment is known in the prior art. The ground fragments of the sample to be analyzed are chemically treated by dissolution in an acid, usually orthophosphoric acid, or by heating. This reaction produces carbon dioxide, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01N1/44
CPCG01N33/24G01N1/44G01N2001/045G01N2001/028G01N1/02
Inventor 奥利维尔·缪塞克里斯多夫·托马佐皮埃尔·桑·霍夫雷泰奥菲尔·科克雷斯蒂芬·拉隆达
Owner UNIV DE BOURGOGNE (FR)