CN114910545A - Carbon-oxygen isotope analysis device for carbonate - Google Patents

Carbon-oxygen isotope analysis device for carbonate Download PDF

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Publication number
CN114910545A
CN114910545A CN202210539613.7A CN202210539613A CN114910545A CN 114910545 A CN114910545 A CN 114910545A CN 202210539613 A CN202210539613 A CN 202210539613A CN 114910545 A CN114910545 A CN 114910545A
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gas
cavity
pool
cold trap
path
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杜勇
宋虎跃
邱海鸥
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China University of Geosciences
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China University of Geosciences
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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Abstract

The application relates to a carbonate carbon oxygen isotope analytical equipment, it includes: the device comprises a rotating table and a measuring mechanism, wherein a plurality of ablation pool cavities are arranged on the rotating table along the circumferential direction of the rotating table, and each ablation pool cavity is provided with a gas inlet and a gas outlet; each subassembly of measuring mechanism distributes along denudation pond cavity in proper order, and measuring mechanism includes: the system comprises a laser system, an exhaust unit, a purification sample introduction unit and a gas isotope mass spectrometer; the laser system is positioned above the cavity of the ablation tank and is provided with a laser action area, and the laser action area is positioned on a movement path of the cavity of the ablation tank; the exhaust unit is used for being in butt joint with the gas inlet and outlet so as to replace air in the cavity of the denudation pool with helium; the purification sample introduction unit is used for being in butt joint with the gas inlet and outlet so as to sample; the gas isotope mass spectrometer is connected with the purification sample injection unit. The rotary table is provided with the plurality of denudation pool cavities and the measuring mechanism is matched, so that different samples can be independently and continuously subjected to exhaust, denudation reaction and purification test, and the test efficiency can be improved.

Description

Carbon-oxygen isotope analysis device for carbonate
Technical Field
The application relates to the field of isotope analysis of rock minerals, in particular to a carbon-oxygen isotope analysis device for carbonate.
Background
In recent years, the micro-area in-situ technology is more and more widely applied to the fields of geology, archaeology, biology and the like, however, related instruments developed mainly are secondary ion sampling systems (such as SIMS) or laser ablation inductive coupling systems (such as LA-ICP-MS), and the micro-area in-situ analysis technology has extremely limited development in the field of gas stable isotope analysis.
Gas stable isotopes refer to species such as H, C, N, O, S that form elements that stabilize the form of gases that are isotopically analyzed by a specialized instrument system to the highest degree of accuracy: the conventional external devices include an element analyzer EA, a gas chromatograph GC, a liquid chromatograph LC, a gas preconcentration system (such as PreCon), a multifunctional gas preparation and introduction device (GasBench), etc., however, these external devices can only process the whole sample and then send the processed sample into the external device to be converted into a corresponding stable gas form, and then send the sample into the gas isotope mass spectrometer for analysis, and the high-precision analysis of the gas stable isotope in situ in a micro-area cannot be realized.
The existing technology for analyzing carbon-oxygen isotopes of carbonate minerals by utilizing laser ablation comprises the following steps: the laser and the modified micro-optical device are coaxially arranged, a high-energy laser beam is focused on the surface of a sample through an optical system, and chemical bonds of the sample are destroyed by generating a high temperature, so that a carbonate sample is decomposed to generate CO 2 Off-line collection of vacuum purified CO 2 And then collecting the collected CO 2 The carbon-oxygen isotope is sent to a gas stable isotope gas isotope mass spectrometer sample introduction system for testing, the process of the method is off-line, only one sample can be manually tested at a time, and no device for applying a laser ablation system to on-line analysis of the carbon-oxygen isotope of the carbonate of the gas stable isotope gas isotope mass spectrometer exists at present.
Disclosure of Invention
The embodiment of the application provides a carbonate carbon oxygen isotope analytical equipment to can only once test a sample when solving the test among the correlation technique, problem that efficiency of software testing is low.
In order to achieve the purpose, the invention provides the following technical scheme: a carbonate carbon oxygen isotope analysis apparatus, comprising: the device comprises a rotating table and a measuring mechanism, wherein a plurality of ablation pool cavities are arranged on the rotating table along the circumferential direction of the rotating table, and each ablation pool cavity is provided with a gas inlet and a gas outlet; each subassembly of measuring mechanism is followed the degradation pond cavity distributes in proper order, measuring mechanism includes: the device comprises a laser system, an exhaust unit, a purification sample injection unit and a gas isotope mass spectrometer, wherein the laser system is positioned above a cavity of an ablation tank and is provided with a laser action area, and the laser action area is positioned on a movement path of the cavity of the ablation tank; the air exhaust unit is used for being in butt joint with the gas inlet and the gas outlet so as to replace air in the cavity of the denudation pool with helium gas; the purification sample introduction unit is used for being in butt joint with the gas inlet and outlet so as to sample; the gas isotope mass spectrometer is connected with the purification sample introduction unit; and on the movement path, the distance between the laser action areas of two adjacent laser systems is positive integral multiple of the distance between two adjacent ablation pool cavities.
The exhaust unit includes: the first double-path needle is in butt joint with the gas inlet and outlet and comprises two gas paths, wherein one gas path is used for gas transmission, and the other gas path is used for discharging gas in the cavity of the denudation pool to remove impurity air.
The exhaust unit further includes: and the movable shaft of the first air cylinder is connected with a first double-way needle.
The bottom end of the rotating platform is provided with a driving device, and the rotating output end of the driving device is fixedly connected with the rotating platform; and a tank cover embedded with a window sheet is arranged on the upper cover of the cavity of the denudation tank.
The window sheet seals the tank cover through a flange and a rubber ring.
The gas inlet and outlet includes: the device comprises a through pipe, a side cover and a gasket, wherein the through pipe is communicated with the cavity of the denudation pool, and one end of the through pipe extends out of the surface of the rotating table; the side cover is in threaded connection with one end of the through pipe, and a through hole is formed in the middle of the side cover; the gasket is arranged on the side cover and seals the through hole, and the gasket is movably connected with the first double-way needle.
When the laser action area works, the laser action area is positioned at the central position of the cavity of the denudation pool.
The purification sampling unit comprises: the second double-path needle is arranged on one side of the gas inlet and outlet and is in butt joint with the gas inlet and outlet, the second double-path needle comprises two gas paths, one gas path is used for conveying gas, and the other gas path is used for discharging gas in the cavity of the denudation pool to sample; the first cold trap is arranged upstream of the six-way valve along the gas flow direction; the second cold trap is arranged at the downstream of the six-way valve along the gas flow direction; the pipeline is used for connecting the second double-way needle, the six-way valve, the first cold trap, the second cold trap and the glass tube; the six-way valve is characterized in that joints are numbered as 1, 2, 3, 4, 5 and 6 in an anticlockwise mode, a joint 1 is connected with a first cold trap, a joint 2 is connected with an inlet of a second cold trap, a joint 3 is connected with low-speed helium, a joint 4 is connected with a glass tube, a joint 5 is connected with an outlet of the second cold trap, and a joint 6 is arranged to air.
The purification sampling unit further comprises: the movable shaft of the second cylinder is connected with a second double-way needle; the third cylinder is arranged on one side of the second cold trap, and a movable shaft of the third cylinder is connected with the second cold trap.
The gas isotope mass spectrometer is connected with the glass tube.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a carbonate carbon oxygen isotope analytical equipment, a plurality of degradation pond cavitys have been set up on the revolving stage, measurement mechanism has been coordinated, when carrying out carbonate carbon oxygen isotope analysis, through distribution exhaust unit, the position of laser degradation unit and the relative cavity of purification introduction unit, the laser degradation of some samples and the isotope analysis of other samples can go on simultaneously, the device can make different samples independently and carry out the exhaust in succession, the degradation reaction, the purification test, the problem of the unable online continuous test of carbonate carbon oxygen laser micro-area analysis has been solved, can improve the efficiency of test.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a front cross-sectional structural view of an integrated device provided in an embodiment of the present application;
fig. 2 is a top view of a laser system and a turntable according to an embodiment of the present disclosure.
In the figure: 1. a rotating table; 100. denudating the cavity of the pool; 101. a pool cover; 102. a window piece; 103. pipe passing; 104. a side cover; 105. a gasket; 11. a drive device;
2. a laser system;
3. a purification sample introduction unit; 30. a second cylinder; 31. a second double needle; 32. a pipeline; 33. a first cold trap; 34. a second cold trap; 35. a six-way valve; 36. a glass tube; 37. a third cylinder;
4. a gas isotope mass spectrometer;
5. an exhaust unit; 50. a first cylinder; 51. a first double-way needle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 to 2, an embodiment of the present application provides a carbonate carbon-oxygen isotope analysis apparatus, which includes: the device comprises a rotating platform 1 and a measuring mechanism, wherein a plurality of ablation pool cavities 100 are arranged on the rotating platform 1 along the circumferential direction of the rotating platform, and the ablation pool cavities 100 are provided with gas inlets and gas outlets; each subassembly of measuring mechanism distributes along denudation pond cavity 100 in proper order, and measuring mechanism includes: the system comprises a laser system 2, an exhaust unit 5, a purification sample introduction unit 3 and a gas isotope mass spectrometer 4; the laser system 2 is positioned above the ablation tank cavity 100 and is provided with a laser action area, and the laser action area is positioned on the movement path of the ablation tank cavity 100; the exhaust unit 5 is used for being in butt joint with the gas inlet and outlet so as to replace air in the ablation cell cavity 100 with helium; the purification sample introduction unit 3 is used for being in butt joint with the gas inlet and outlet so as to sample; the gas isotope mass spectrometer 4 is connected with the purification sample introduction unit 3; and on the moving path, the distance between the laser action areas of two adjacent laser systems 2 is positive integral multiple of the distance between two adjacent ablation cell cavities 100.
The rotary table 1 is provided with a plurality of denudation pool cavities 100, the exhaust unit 5 and the purification sample introduction unit 3 which are sequentially arranged are matched, when the carbon-oxygen isotope analysis of carbonate is carried out, the laser denudation of some samples and the isotope analysis of other samples can be carried out simultaneously, the device can enable different samples to independently and continuously carry out exhaust, enrichment and test, and the test efficiency can be improved.
When the carbon-oxygen isotope analysis of the carbonate is carried out, firstly, the sample is pretreated, the carbonate sample is cut to be not larger than the size of the cavity 100 of the denudation pool, the carbonate sample is heated at 700 ℃ to remove water vapor and organic matters on the surface, and then, each sample is respectively placed into different denudation pool cavities 100 and sealed;
then discharging the air in the cavity 100 of the denudation pool, and opening a He gas switch to completely replace the air in the cavity 100 of the denudation pool with He gas;
then the surface of the sample is ablated by laser, the rotating table 1 rotates for a certain angle, the ablation pool cavity 100 which is exhausted is arranged below the laser system 2, when the laser action area works, the laser action area is positioned at the central position of the ablation pool cavity 100, the size of a laser spot is adjusted to align to the position to be analyzed, the laser is opened to ablate the surface of the sample, and calcium carbonate is decomposed at high temperature to generate CO 2 ；
Then CO is carried out 2 In the enrichment and enrichment mode, CO in the cavity 100 of the denudation pool is degraded 2 Discharging gas, purifying and sampling unit 3, freezing CO generated by denudation 2 Gases, other possible low boiling point impurity gases, are vented to the atmosphere;
finally, the sample is injected into a gas isotope mass spectrometer 4 to lead the frozen CO to be 2 And (4) quickly sublimating, and sending the low-flow-rate He gas (the flow rate is 0.5-3 mL/min) into a gas isotope mass spectrometer 4 for carbon and oxygen isotope test.
The exhaust unit 5 includes: the first double-path needle 51 is in butt joint with the gas inlet and outlet, the first double-path needle 51 comprises two gas paths, one gas path is used for gas transmission, and the other gas path is used for discharging gas in the ablation pool cavity 100 to remove impurity air; the exhaust unit 5 further includes: and a first cylinder 50, wherein the movable shaft of the first cylinder 50 is connected with a first double-way needle 51.
The bottom end of the rotating platform 1 is provided with a driving device 11, and the rotating output end of the driving device 11 is fixedly connected with the rotating platform 1; the upper cover of the denudation pool cavity 100 is provided with a pool cover 101 inlaid with a window sheet 102, and the gas inlet and outlet comprise: a through pipe 103, a side cover 104 and a gasket 105, wherein the through pipe 103 is communicated with the denudation pool cavity 100, and one end of the through pipe extends out of the surface of the rotating platform 1; the side cover 104 is in threaded connection with one end of the through pipe 103, and a through hole is formed in the middle of the side cover 104; the gasket 105 is disposed on the side cover 104 and seals the through hole, and the gasket 105 is movably connected to the first duplex pin 51.
The driving device 11 is a stepping rotary table, the rotary table 1 is carried to rotate by a certain angle, the ablation pool cavity 100 is arranged below the laser system 2, a plurality of samples are respectively placed in different ablation pool cavities 100, then the window sheet 102 is covered, the window sheet 102 seals the pool cover 101 through a flange and a rubber ring, the rubber ring is a fluororubber O-shaped ring and is used for closing a flange joint on the pool cover 101, the first double-channel needle 51 is provided with two gas channels, one is filled with He gas inwards, the other is filled with air, when the air in the ablation pool cavity 100 is exhausted, a He gas switch is opened, the first cylinder 50 is used for carrying the first double-channel needle 51 to puncture the gasket 105, the gasket 105 is made of butyl rubber, the air in the ablation pool cavity 100 can be completely replaced by the He gas after several minutes (depending on the flow rate of the He gas and the size of the cavity), and then the first cylinder 50 drives the first double-channel needle 51 to be pulled out.
The purification sample introduction unit 3 includes: the second double-path needle 31 is arranged on one side of the gas inlet and outlet and is in butt joint with the gas inlet and outlet, the second double-path needle 31 comprises two gas paths, one gas path is used for conveying gas, and the other gas path is used for discharging the gas in the ablation cell cavity 100 to sample; in the gas flow direction, the first cold trap 33 is disposed upstream of the six-way valve 35; in the gas flow direction, the second cold trap 34 is disposed downstream of the six-way valve 35; the pipeline 32 is used for connecting the second double-way needle 31, the six-way valve 35, the first cold trap 33, the second cold trap 34 and the glass tube 36; the joints of the six-way valve 35 are numbered as 1, 2, 3, 4, 5 and 6 in a counterclockwise manner, the joint 1 is connected with the first cold trap 33, the joint 2 is connected with the inlet of the second cold trap 34, the joint 3 is connected with the low-speed helium, the joint 4 is connected with the glass tube 36, the joint 5 is connected with the outlet of the second cold trap 34, and the joint 6 is discharged to air; the purification sample introduction unit 3 further includes: a second air cylinder 30 and a third air cylinder 37, wherein the movable shaft of the second air cylinder 30 is connected with a second double-way needle 31; the third cylinder 37 is disposed on one side of the second cold trap 34, and the movable shaft of the third cylinder 37 is connected to the second cold trap 34.
The gas isotope mass spectrometer 4 is connected to the glass tube 36 in such a manner that the orifice of the glass tube 36 is open.
Specifically, in the glass tube 36 into which the gas from the second cold trap 34 enters, the other end of the glass tube 36 is open, and two pipelines, namely a helium pipeline and a gas isotope mass spectrometer 4 pipeline, are inserted, because the gas isotope mass spectrometer 4 is in a vacuum environment, the gas isotope mass spectrometer 4 pipeline sucks gas from the glass tube 36, and the helium pipeline is continuously filled with helium gas to protect the glass tube 36 from entering air.
In the enrichment mode, the second cylinder 30 carries a second two-way needle 31 to puncture the gasket 105, and the He gas (with the flow rate of 10-30 mL/min) erodes the CO in the cavity 100 of the denudation pool 2 The gas is discharged, the discharged gas firstly passes through a first cold trap 33 at the temperature of 70 ℃ below zero to freeze possible low boiling point impurities such as a small amount of water vapor, hydrocarbons and the like generated in the denudation process, then passes through a six-way valve 35 to enter a second cold trap 34 to freeze CO generated by denudation 2 The gas, possibly other low boiling impurity gases such as N2, is vented to the atmosphere.
When the sample is introduced into the gas isotope mass spectrometer 4, the six-way valve 35 is switched to the sample introduction mode, the second cold trap 34 removes the liquid nitrogen, and the frozen CO is 2 And the sample is sublimated rapidly, and the sublimated sample is sent into a glass tube 36 by low-flow-rate He gas (the flow rate is 0.5-3 mL/min) and then enters a gas isotope mass spectrometer 4 for carbon and oxygen isotope test.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in this application, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A carbonate carbon oxygen isotope analytical equipment, characterized by that, it includes:
the device comprises a rotating table (1), wherein a plurality of ablation pool cavities (100) are arranged on the rotating table (1) along the circumferential direction of the rotating table, and the ablation pool cavities (100) are provided with gas inlets and gas outlets;
measuring mechanism, each subassembly of measuring mechanism is followed it distributes in proper order to degrade pond cavity (100), measuring mechanism includes:
-a laser system (2) located above the ablation cell cavity (100) having a laser active area located on the path of movement of the ablation cell cavity (100);
-an exhaust unit (5) for interfacing with a gas inlet and outlet for replacing air within the denudation cell cavity (100) with helium;
-a purification sample introduction unit (3) for interfacing with a gas inlet and outlet for sampling;
-a gas isotope mass spectrometer (4), the gas isotope mass spectrometer (4) being connected to a purification sample injection unit (3);
and on the movement path, the distance between the laser action areas of two adjacent laser systems (2) is positive integral multiple of the distance between two adjacent ablation pool cavities (100).
2. A carbonate carbon oxygen isotope analysis apparatus in accordance with claim 1, wherein: the exhaust unit (5) includes:
the first double-path needle (51), the first double-path needle (51) is docked with the gas inlet and outlet, the first double-path needle (51) comprises two gas paths, wherein one gas path is used for conveying gas, and the other gas path is used for discharging gas in the denudation pool cavity (100) to remove impurity air.
3. A carbonate carbon oxygen isotope analysis apparatus in accordance with claim 2, wherein: the exhaust unit (5) further comprises:
the movable shaft of the first air cylinder (50) is connected with a first double-way needle (51).
4. A carbonate carbon oxygen isotope analysis apparatus in accordance with claim 1, wherein: the bottom end of the rotating platform (1) is provided with a driving device (11), and the rotating output end of the driving device (11) is fixedly connected with the rotating platform (1);
the upper cover of the denudation pool cavity (100) is provided with a pool cover (101) embedded with a window sheet (102).
5. The apparatus for analyzing carbon and oxygen isotopes of carbonate according to claim 4, wherein: the window sheet (102) seals the pool cover (101) through a flange and a rubber ring.
6. A carbonate carbon oxygen isotope analysis apparatus in accordance with claim 2, wherein: the gas inlet and outlet includes:
the through pipe (103), the through pipe (103) is communicated with the denudation pool cavity (100), and one end of the through pipe extends out of the surface of the rotating platform (1);
the side cover (104), the said side cover (104) is screwed to one end of the siphunculus (103), the said side cover (104) middle part has through holes;
the gasket (105) is arranged on the side cover (104) and seals the through hole, and the gasket (105) is movably connected with the first double-way needle (51).
7. A carbonate carbon oxygen isotope analysis apparatus in accordance with claim 1, wherein: when the laser action area works, the laser action area is positioned at the central position of the ablation pool cavity (100).
8. A carbonate carbon oxygen isotope analysis apparatus in accordance with claim 1, wherein: the purification sample introduction unit (3) comprises:
the second double-path needle (31) is arranged on one side of the gas inlet and outlet and is in butt joint with the gas inlet and outlet, the second double-path needle (31) comprises two gas paths, one gas path is used for conveying gas, and the other gas path is used for discharging gas in the denudation pool cavity (100) to sample;
a six-way valve (35);
a first cold trap (33), in the gas flow direction, the first cold trap (33) being arranged upstream of the six-way valve (35);
a second cold trap (34) in the gas flow direction, the second cold trap (34) being arranged downstream of the six-way valve (35);
the pipeline (32) is used for connecting the second double-path needle (31), the six-way valve (35), the first cold trap (33), the second cold trap (34) and the glass tube (36);
the six-way valve (35) is characterized in that joints are numbered as 1, 2, 3, 4, 5 and 6 according to the counterclockwise number, the joint 1 is connected with the first cold trap (33), the joint 2 is connected with the inlet of the second cold trap (34), the joint 3 is connected with the low-speed helium, the joint 4 is connected with the glass tube (36), the joint 5 is connected with the outlet of the second cold trap (34), and the joint 6 is arranged to the air.
9. A carbonate carbon oxygen isotope analysis apparatus in accordance with claim 8 wherein: the purification sample introduction unit (3) further comprises:
the movable shaft of the second air cylinder (30) is connected with a second double-way needle (31);
and the third air cylinder (37) is arranged on one side of the second cold trap (34), and a movable shaft of the third air cylinder (37) is connected with the second cold trap (34).
10. A carbonate carbon oxygen isotope analysis apparatus in accordance with claim 8 wherein: the gas isotope mass spectrometer (4) is connected with a glass tube (36).
CN202210539613.7A 2022-05-17 2022-05-17 Carbon-oxygen isotope analysis device for carbonate Pending CN114910545A (en)

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CN202210539613.7A CN114910545A (en) 2022-05-17 2022-05-17 Carbon-oxygen isotope analysis device for carbonate

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116399660A (en) * 2023-03-31 2023-07-07 中国地质科学院矿产资源研究所 Femtosecond laser probe silicate silicon oxygen isotope micro-region in-situ analysis system and method
CN116413104A (en) * 2023-03-31 2023-07-11 中国地质科学院矿产资源研究所 System and method for in-situ analysis of carbonate carbon-oxygen isotope micro-region by ultraviolet laser ablation-gas isotope mass spectrometry

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116399660A (en) * 2023-03-31 2023-07-07 中国地质科学院矿产资源研究所 Femtosecond laser probe silicate silicon oxygen isotope micro-region in-situ analysis system and method
CN116413104A (en) * 2023-03-31 2023-07-11 中国地质科学院矿产资源研究所 System and method for in-situ analysis of carbonate carbon-oxygen isotope micro-region by ultraviolet laser ablation-gas isotope mass spectrometry
CN116399660B (en) * 2023-03-31 2023-09-19 中国地质科学院矿产资源研究所 Femtosecond laser probe silicate silicon oxygen isotope micro-region in-situ analysis system and method
CN116413104B (en) * 2023-03-31 2024-01-30 中国地质科学院矿产资源研究所 System and method for in-situ analysis of carbonate carbon-oxygen isotope micro-region by ultraviolet laser ablation-gas isotope mass spectrometry

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