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Determination device and determination method for carbon dioxide carbon isotope composition in mineral inclusion

A carbon dioxide and carbon isotope technology, applied in measurement devices, chemical instruments and methods, separation methods, etc., can solve the problems of time-consuming and laborious conversion and collection process, complex sample preparation device, isotope fractionation, etc., to reduce isotope exchange and sample volume. , the effect of reducing the sample size

Pending Publication Date: 2021-04-13
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

[0008] The purpose of the present invention is to provide a carbon dioxide carbon isotope composition measurement device and measurement method in mineral inclusions, which is used to solve the problem of complex off-line pretreatment sample preparation devices, time-consuming and laborious conversion and collection processes in the existing technical methods for testing carbon dioxide in mineral inclusions. Inefficiencies, technical problems of isotope fractionation

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  • Determination device and determination method for carbon dioxide carbon isotope composition in mineral inclusion

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Embodiment Construction

[0045] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0046] Carbon dioxide carbon isotope composition determination device in mineral inclusions, including:

[0047] First helium gas inlet 1, first valve 2, first water well 3, second helium gas inlet 15, second valve 14, second water well 6, third water well 13, temperature-controlled heating furnace 5. Six-way valve 7, carbon dioxide trap 8, single-opening quartz tube 9, carbon dioxide collection tube 10, liquid nitrogen cup 11, stable isotope mass spectrometer 12, sampling needle 16, sample tube 17 and several connecting pipelines:

[0048] The six-way valve 7 includes: a first port 71 of the six-way valve, a second port 72 of the six-way valve, a third port 73 of the six-way valve, a fourth port 74 of the six-way valve, a fifth port 75 of the six-way valve and a six-way valve valve sixth port 76;

[0049] The first helium gas inlet 1 is con...

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Abstract

The invention belongs to the technical field of determination of carbon dioxide and carbon isotope composition in mineral inclusion, and particularly relates to a determination device and a determination method for carbon dioxide and carbon isotope composition in mineral inclusion. The device comprises a first helium inlet, a first valve, a first water trap, a second helium inlet, a second valve, a second water trap, a third water trap, a temperature control heating furnace, a six-way valve, a carbon dioxide trap, a single-opening quartz tube, a carbon dioxide collecting tube, a liquid nitrogen cup, a stable isotope mass spectrometer, a sample injection needle, a sample tube and a plurality of connecting pipelines. A continuous flow sampling device is adopted, a mineral inclusion bursting device and the carbon dioxide collecting device are connected with the stable isotope mass spectrometer, and online heating bursting of the mineral inclusion, online collecting of carbon dioxide gas and online testing of carbon dioxide carbon isotope are achieved.

Description

technical field [0001] The invention belongs to the technical field of measuring the carbon isotope composition of carbon dioxide in mineral inclusions, and in particular relates to a measuring device and method for the carbon isotope composition of carbon dioxide in mineral inclusions. Background technique [0002] At present, the more mature methods for testing carbon dioxide in mineral inclusions are mainly off-line two-way method, which can be divided into vacuum ball milling method, crushing method, traditional burst method and improved sealed quartz tube burst method, but the two-way method has high sample preparation costs , low efficiency, large sample volume, large error and other shortcomings. [0003] The vacuum ball milling method is generally to put the purified and dried 40-60 mesh sample into the ball mill, vacuumize after sealing, grind the sample to open the mineral inclusions, collect the released carbon dioxide gas, and then use the two-way method to test ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62G01N1/28B01D53/02
CPCB01D53/02B01D2253/1122G01N1/286G01N27/62
Inventor 金贵善刘汉彬张建锋韩娟李军杰张佳石晓姜华
Owner BEIJING RES INST OF URANIUM GEOLOGY
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