CN116840379A - Method for measuring difference of carbon dioxide in atmosphere and human body expiration by using carbon dioxide family - Google Patents
Method for measuring difference of carbon dioxide in atmosphere and human body expiration by using carbon dioxide family Download PDFInfo
- Publication number
- CN116840379A CN116840379A CN202310856580.3A CN202310856580A CN116840379A CN 116840379 A CN116840379 A CN 116840379A CN 202310856580 A CN202310856580 A CN 202310856580A CN 116840379 A CN116840379 A CN 116840379A
- Authority
- CN
- China
- Prior art keywords
- sample
- mass
- mass number
- carbon dioxide
- abundance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 30
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 claims abstract description 10
- 238000001819 mass spectrum Methods 0.000 claims abstract description 8
- 230000006698 induction Effects 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000012159 carrier gas Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- NRFBNLSYHGSZNL-UHFFFAOYSA-N [C].O=O Chemical compound [C].O=O NRFBNLSYHGSZNL-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/30—Control of physical parameters of the fluid carrier of temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/72—Mass spectrometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/86—Signal analysis
- G01N30/8675—Evaluation, i.e. decoding of the signal into analytical information
- G01N30/8686—Fingerprinting, e.g. without prior knowledge of the sample components
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/30—Control of physical parameters of the fluid carrier of temperature
- G01N2030/3007—Control of physical parameters of the fluid carrier of temperature same temperature for whole column
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
- G01N2030/324—Control of physical parameters of the fluid carrier of pressure or speed speed, flow rate
Abstract
The invention relates to a method for measuring the difference of carbon dioxide in atmosphere and human expiration by using carbon dioxide family, which comprises the following steps: the method comprises the steps of respectively collecting an atmospheric sample and a human body exhale sample; secondly, obtaining a color-mass spectrum of each sample by adopting a gas chromatography-mass spectrometry combined technology, and obtaining CO in all samples by adopting a mass selection detector MSD respectively 2 Mass number and abundance of (a) to establish CO in each sample 2 Mass number abundance table of (a); respectively establishing each sample CO 2 A mass number abundance reproduction summary table of (a); fourth, establishing the mass number sum of the exhalations of the atmosphere and the human body% numerical summary table; fifthly, obtaining CO in the unknown sample by adopting the steps of 2 Mass number and abundance of (a) and then with known CO 2 The mass number and the% value induction table are compared to preliminarily determine whether the unknown sample is an atmospheric sample or a human expiration sample. The invention can digitally distinguish the difference between the atmosphere and the human body exhalations.
Description
Technical Field
The invention relates to the technical fields of natural gas, geology, meteorology, petroleum, nuclear science, human medicine, animal and plant research and the like, in particular to a method for measuring the difference between atmosphere and carbon dioxide in human expiration by using carbon dioxide family.
Background
The carbon dioxide concentration in the atmosphere is very low, about 0.04%. Experts believe that the carbon dioxide concentration in the atmosphere is relatively stable, but for industrialization and urban reasons, many places break through the original level and develop in the direction of step-by-step growth.
In general, a human body breathes in air, the inhaled air exchanges air in alveoli, that is, oxygen contained in the air is released into blood to supply oxygen to the body, and various vital activities of the body are metabolized to generate carbon dioxide, and the carbon dioxide is exhaled from the outside of the body through the air exchange of alveoli. The main component of the exhaled air is carbon dioxide during the breathing process of the human body, but because the inhaled air is not possibly completely replaced with carbon dioxide in tissues, part of air (comprising oxygen, nitrogen and the like) is also contained in the exhaled air, and more water vapor is also contained in the exhaled air due to the humidification of liquid in the airway.
At present, the simplest method for identifying the carbon dioxide content in the air and the carbon dioxide content in the gas exhaled by the human body is to collect a bottle of air and exhaled gas respectively, add equal amount of clarified lime water into the air and oscillate, observe that the air bottle has no change, and white sediment is generated in the bottle of exhaled gas, which indicates that the carbon dioxide content in the air is less than the carbon dioxide content in the exhaled gas. However, a method for digitally measuring the difference of carbon dioxide in atmosphere and human expiration by using carbon dioxide family is not available.
Disclosure of Invention
The invention aims to provide a method for measuring the difference of carbon dioxide in atmosphere and human expiration by using carbon dioxide family.
In order to solve the above problems, the method for measuring the difference between the atmosphere and the carbon dioxide in the expiration of the human body by using the carbon dioxide family of the invention comprises the following steps:
the method comprises the steps of respectively collecting an atmospheric sample and a human body exhale sample;
the method comprises the steps of obtaining color-mass spectrograms of the atmospheric sample and the human body exhale sample by adopting a gas chromatography-mass spectrometry combined technology, and adopting mass selectionDetector-selective MSD obtains CO in all samples 2 Mass number and abundance of (a) each sample was 10 times, and CO in each sample was established separately 2 Mass number abundance table of (a);
third step of CO in each sample 2 The mass number abundance value of (2) is compared, and when the CO in each sample is 2 The mass number in the peak is preserved for 10 times, and each sample CO is established 2 A mass number abundance reproduction summary table of (a);
based on each sample CO 2 The mass number abundance reproduction summary table of (1) establishes an atmosphere, human expiration mass number and% numerical summary table;
fifthly, obtaining a color-mass spectrum of an unknown sample by adopting a gas chromatography-mass spectrometry combined technology, and obtaining CO in the unknown sample by adopting a mass selection detector MSD 2 Mass number and abundance of (a) and then with known CO 2 The mass number and the% value induction table are compared to preliminarily determine whether the unknown sample is an atmospheric sample or a human expiration sample.
The condition of the gas chromatography-mass spectrometry technology refers to that a chromatographic column is a porous high polymer small sphere column with the diameter of 3mm and the column length of 4.0-6.0 m; the carrier gas being H 2 The method comprises the steps of carrying out a first treatment on the surface of the The column temperature is constant 40 ℃; the temperature of the sample inlet is 130 ℃; the flow rate of the column is 30-40 mL/min; the MS detector temperature was 250 ℃; the sample injection amount is 2mL; the sample injection mode is a manual injector.
The condition of the mass selection detector MSD is that the transmission line temperature is 250 ℃; the ion source temperature is 250 ℃; the ionization mode is EI; ionization energy is 70eV; the mass number scanning range is 2-220.
Compared with the prior art, the invention has the following advantages:
1. the invention uses the method of comparing and calculating the mass number, mass number percentage concentration and mass number abundance ratio of the chromatographic-mass spectrometer for measuring the carbon dioxide n CO 2 ) The group mass number molecules are analyzed and compared, and CO in atmosphere and human expiration can be distinguished digitally 2 Is a difference in (a) between the two.
2. The method of the invention can be used in atmosphere and human body exhalation n CO 2 Number of family playsAnd (3) comparing the fingerprints of the word model.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
FIG. 1 is a GC-MSD analysis of the present invention for a Lanzhou atmospheric color-mass spectrum (the upper right gray line represents the mass spectrum scan point).
FIG. 2 is a graph of GC-MSD analysis of human breath color-mass spectrum (upper right gray line represents mass spectrum scan point) according to the present invention.
Detailed Description
In the following examples, the apparatus: TRACE GC ULTRA gas chromatograph, MSD detector and associated chromatography, mass spectrometry workstation (Thermo Inc. of USA). Wherein:
the condition of the gas chromatography mass spectrometry technology refers to that the chromatographic column is a porous high polymer small sphere column with the diameter of 3mm and the column length of 4.0-6.0 m; the carrier gas being H 2 The method comprises the steps of carrying out a first treatment on the surface of the The column temperature is constant 40 ℃; the temperature of the sample inlet is 130 ℃; the flow rate of the column is 30-40 mL/min; the MS detector temperature was 250 ℃; the sample injection amount is 2mL; the sample injection mode is a manual injector.
The condition for mass selection detector MSD refers to transmission line temperature of 250 ℃; the ion source temperature is 250 ℃; the ionization mode is EI; ionization energy is 70eV; the mass number scanning range is 2-220.
Sample: the outside atmosphere of Lanzhou; the human body exhales.
A method for measuring the difference between atmospheric air and carbon dioxide in human expiration by using carbon dioxide family, comprising the following steps:
the method comprises the steps of respectively collecting an atmospheric sample and a human body exhale sample;
secondly, gas chromatography-mass spectrometry technology is respectively adopted for the atmospheric sample and the human body expired air sample to obtain the color-mass spectrograms of each sample, and a mass selection detector MSD is respectively adopted to obtain CO in all samples 2 Mass number and abundance of (a) each sample was 10 times, and CO in each sample was established separately 2 Mass number abundance table of (c). The experimental results are shown in fig. 1-2, and tables 1-2.
Table 1 MSD analysis of CO in 10 lan state atmospheric samples 2 Mass number abundance table of (a)
Table 2 MSD analysis of CO in 10 human breath samples 2 Mass number abundance table of (a)
Third step of CO in each sample 2 The mass number abundance value of (2) is compared, and when the CO in each sample is 2 The mass number in the peak is preserved for 10 times, and each sample CO is established 2 The mass number abundance reproduction summary table of (c). The results are shown in tables 3 to 4.
Table 3 MSD analysis of CO in 10 lan state atmospheric samples 2 Mass number abundance reproduction summary table
Table 4 MSD analysis of CO in 10 human breath samples 2 Is a mass number abundance reproduction summary table
(4) According to each sample CO 2 The mass number abundance ratio of (c) is summarized, and the mass numbers and% values in tables 3 and 4 are summarized to create a summary table of atmosphere, human exhalation mass numbers and% values, see table 5.
TABLE 5 CO in Lanzhou atmospheric and human breath samples 2 Mass number and% numerical summary table of (c)
| Mass number | Lanzhou atmospheric CO 2 (％) | Human body exhaling CO 2 (％) |
| 12 | 0.1008 | 0.1681 |
| 13 | 0.0015 | 0.0022 |
| 16 | 0.531 | 0.609 |
| 22 | 0.0145 | 0.0891 |
| 28 | 0.5866 | |
| 44 | 34.2442 | 62.5867 |
| 45 | 63.9711 | 35.0955 |
| 46 | 0.8666 | 0.6985 |
| 47 | 0.2704 | 0.1636 |
| 48 | 0.0008 |
From Table 5, it can be seen that CO is present in Lanzhou atmosphere and human breath samples 2 The mass number molecules and concentration distribution are different. Sample CO from Lanzhou atmosphere and human expiration in tables 3 and 4 2 The abundance values of the internal common mass number molecules 12, 13, 16, 22, 44, 45, 46, 47 are respectively used as mass number abundance ratios, and are shown in tables 6 and 7.
TABLE 6 MSD analysis of CO in 10 Lanzhou atmospheric samples 2 Mass number abundance ratio meter
TABLE 7 MSD analysis of CO in 10 human breath samples 2 Mass number abundance ratio meter
The mass number abundance ratio of the average value in tables 6 and 7 is summarized in Table 8.
TABLE 8 CO in Lanzhou atmospheric and human breath samples ２ Mass number abundance ratio comparison table
| Ratio of mass number abundance | Lanzhou atmosphere | Human exhale |
| 13 CO 2 / 12 CO 2 | 0.02 | 0.01 |
| 16 CO 2 / 12 CO 2 | 5.35 | 3.62 |
| 22 CO 2 / 12 CO 2 | 0.14 | 0.53 |
| 44 CO 2 / 12 CO 2 | 343.49 | 372.96 |
| 45 CO 2 / 12 CO 2 | 638.33 | 209.7 |
| 46 CO 2 / 12 CO 2 | 8.64 | 4.17 |
| 47 CO 2 / 12 CO 2 | 2.7 | 0.98 |
| 16 CO 2 / 13 CO 2 | 888.29 | 287.67 |
| 22 CO 2 / 13 CO 2 | 19.29 | 42.15 |
| 44 CO 2 / 13 CO 2 | 55587.78 | 29884.1 |
| 45 CO 2 / 13 CO 2 | 100932.15 | 16898.98 |
| 46 CO 2 / 13 CO 2 | 1380.27 | 335.19 |
| 47 CO 2 / 13 CO 2 | 422.58 | 78.77 |
| 22 CO 2 / 16 CO 2 | 0.03 | 0.15 |
| 44 CO 2 / 16 CO 2 | 76.38 | 103.7 |
| 45 CO 2 / 16 CO 2 | 142.98 | 58.5 |
| 46 CO 2 / 16 CO 2 | 1.93 | 1.16 |
| 47 CO 2 / 16 CO 2 | 0.6 | 0.27 |
| 44 CO 2 / 22 CO 2 | 2705.34 | 706.26 |
| 45 CO 2 / 22 CO 2 | 5007.79 | 398.11 |
| 46 CO 2 / 22 CO 2 | 68.01 | 7.9 |
| 47 CO 2 / 22 CO 2 | 21.07 | 1.85 |
| 45 CO 2 / 44 CO 2 | 1.87 | 0.56 |
| 46 CO 2 / 44 CO 2 | 0.03 | 0.01 |
| 47 CO 2 / 44 CO 2 | 0.0079 | 0.0026 |
| 46 CO 2 / 45 CO 2 | 0.01 | 0.02 |
| 47 CO 2 / 45 CO 2 | 0.0042 | 0.0047 |
| 47 CO 2 / 46 CO 2 | 0.31 | 0.23 |
From Table 8, it can be seen that CO is present in the Lanzhou atmosphere and in the human breath 2 The mass number abundance ratio is greatly different. For example 45 CO 2 / 12 CO 2 、 47 CO 2 / 12 CO 2 、 45 CO 2 / 44 CO 2 。
(5) Obtaining a color-mass spectrum of an unknown sample by adopting a gas chromatography-mass spectrometry technology, and obtaining CO in the unknown sample by adopting a mass selection detector MSD 2 Mass number and abundance of (a) and then with known CO 2 The mass number and the% value induction table are compared to preliminarily determine whether the unknown sample is an atmospheric sample or a human expiration sample.
In summary, it can be found that: the method of the invention can be used for well differentiating the Lanzhou atmosphere and the human body exhalations, so that a digital fingerprint library of the Lanzhou atmosphere and the human body exhalations can be established for mutual comparison, and the method can be applied to the fields of natural gas, geology, weather, petroleum, environmental protection, nuclear science, human body medicine, animal and plant research and the like, so that a new analysis method is added.
Claims (3)
1. A method for measuring the difference between atmospheric air and carbon dioxide in human expiration by using carbon dioxide family, comprising the following steps:
the method comprises the steps of respectively collecting an atmospheric sample and a human body exhale sample;
secondly, gas chromatography-mass spectrometry technology is respectively adopted for the atmospheric sample and the human body expired air sample to obtain the color-mass spectrograms of each sample, and a mass selection detector MSD is respectively adopted to obtain CO in all samples 2 Mass number and abundance of (a) each sample was 10 times, and CO in each sample was established separately 2 Mass number abundance table of (a);
third step of CO in each sample 2 The mass number abundance value of (2) is compared, and when the CO in each sample is 2 The mass number in the peak is preserved for 10 times, and each sample CO is established 2 A mass number abundance reproduction summary table of (a);
based on each sample CO 2 Mass number abundance of (2)Reproducing the summary table to establish an atmosphere and human expiration mass number and% numerical summary table;
fifthly, obtaining a color-mass spectrum of an unknown sample by adopting a gas chromatography-mass spectrometry combined technology, and obtaining CO in the unknown sample by adopting a mass selection detector MSD 2 Mass number and abundance of (a) and then with known CO 2 The mass number and the% value induction table are compared to preliminarily determine whether the unknown sample is an atmospheric sample or a human expiration sample.
2. The method for measuring carbon dioxide difference between atmosphere and human expired air using carbon dioxide group as claimed in claim 1, wherein: the condition of the gas chromatography-mass spectrometry technology refers to that a chromatographic column is a porous high polymer small sphere column with the diameter of 3mm and the column length of 4.0-6.0 m; the carrier gas being H 2 The method comprises the steps of carrying out a first treatment on the surface of the The column temperature is constant 40 ℃; the temperature of the sample inlet is 130 ℃; the flow rate of the column is 30-40 mL/min; the MS detector temperature was 250 ℃; the sample injection amount is 2mL; the sample injection mode is a manual injector.
3. The method for measuring carbon dioxide difference between atmosphere and human expired air using carbon dioxide group as claimed in claim 1, wherein: the condition of the mass selection detector MSD is that the transmission line temperature is 250 ℃; the ion source temperature is 250 ℃; the ionization mode is EI; ionization energy is 70eV; the mass number scanning range is 2-220.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310856580.3A CN116840379A (en) | 2023-07-13 | 2023-07-13 | Method for measuring difference of carbon dioxide in atmosphere and human body expiration by using carbon dioxide family |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310856580.3A CN116840379A (en) | 2023-07-13 | 2023-07-13 | Method for measuring difference of carbon dioxide in atmosphere and human body expiration by using carbon dioxide family |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116840379A true CN116840379A (en) | 2023-10-03 |
Family
ID=88174097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310856580.3A Pending CN116840379A (en) | 2023-07-13 | 2023-07-13 | Method for measuring difference of carbon dioxide in atmosphere and human body expiration by using carbon dioxide family |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116840379A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050065446A1 (en) * | 2002-01-29 | 2005-03-24 | Talton James D | Methods of collecting and analyzing human breath |
| CN101968466A (en) * | 2010-09-10 | 2011-02-09 | 中国科学院兰州地质研究所 | Method for analyzing nitrous oxide and carbon dioxide in atmosphere by adopting gas chromatography through one sampling |
| CN102565268A (en) * | 2012-02-28 | 2012-07-11 | 中国科学院地质与地球物理研究所兰州油气资源研究中心 | Method for analyzing stable isotope ratio of CO2 based on chromatography-mass spectrometry |
| CN102759592A (en) * | 2012-07-04 | 2012-10-31 | 中国科学院地质与地球物理研究所兰州油气资源研究中心 | Method for analyzing CO stable isotope mass number abundance ratio through chromatography-mass spectrometry |
| CN111781284A (en) * | 2020-07-08 | 2020-10-16 | 中国科学院西北生态环境资源研究院 | Method for identifying light water, heavy water and heavy oxygen water by using mass number-abundance ratio method |
| CN116124917A (en) * | 2022-11-21 | 2023-05-16 | 中国科学院西北生态环境资源研究院 | Method for distinguishing atmosphere, coal gas, oil gas and biological gas by adopting argon and oxygen groups |
-
2023
- 2023-07-13 CN CN202310856580.3A patent/CN116840379A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050065446A1 (en) * | 2002-01-29 | 2005-03-24 | Talton James D | Methods of collecting and analyzing human breath |
| CN101968466A (en) * | 2010-09-10 | 2011-02-09 | 中国科学院兰州地质研究所 | Method for analyzing nitrous oxide and carbon dioxide in atmosphere by adopting gas chromatography through one sampling |
| CN102565268A (en) * | 2012-02-28 | 2012-07-11 | 中国科学院地质与地球物理研究所兰州油气资源研究中心 | Method for analyzing stable isotope ratio of CO2 based on chromatography-mass spectrometry |
| CN102759592A (en) * | 2012-07-04 | 2012-10-31 | 中国科学院地质与地球物理研究所兰州油气资源研究中心 | Method for analyzing CO stable isotope mass number abundance ratio through chromatography-mass spectrometry |
| CN111781284A (en) * | 2020-07-08 | 2020-10-16 | 中国科学院西北生态环境资源研究院 | Method for identifying light water, heavy water and heavy oxygen water by using mass number-abundance ratio method |
| CN116124917A (en) * | 2022-11-21 | 2023-05-16 | 中国科学院西北生态环境资源研究院 | Method for distinguishing atmosphere, coal gas, oil gas and biological gas by adopting argon and oxygen groups |
Non-Patent Citations (1)
| Title |
|---|
| 潘旭: "二氧化碳（CO2）组成分析法", 《第21届全国色谱学术报告会论文集》, pages 780 - 785 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Španěl et al. | Progress in SIFT‐MS: Breath analysis and other applications | |
| Smith et al. | Selected ion flow tube mass spectrometry (SIFT‐MS) for on‐line trace gas analysis | |
| Berchtold et al. | Real‐time monitoring of exhaled drugs by mass spectrometry | |
| Smith et al. | Application of ion chemistry and the SIFT technique to the quantitative analysis of trace gases in air and on breath | |
| Smith et al. | Trace gases in breath of healthy volunteers when fasting and after a protein-calorie meal: a preliminary study | |
| Lovett et al. | Real‐time analysis of breath using an atmospheric pressure ionization mass spectrometer | |
| Lindinger et al. | Analysis of trace gases at ppb levels by proton transfer reaction mass spectrometry (PTR-MS) | |
| Sukul et al. | Applied upper-airway resistance instantly affects breath components: a unique insight into pulmonary medicine | |
| Španěl et al. | Selected ion flow tube mass spectrometry for on-line trace gas analysis in biology and medicine | |
| Ligor et al. | Preliminary study of volatile organic compounds from breath and stomach tissue by means of solid phase microextraction and gas chromatography–mass spectrometry | |
| Cathcart et al. | The application of exhaled breath gas and exhaled breath condensate analysis in the investigation of the lower respiratory tract in veterinary medicine: A review | |
| Harshman et al. | Evaluation of a standardized collection device for exhaled breath sampling onto thermal desorption tubes | |
| Ross et al. | Volatile compounds in blood headspace and nasal breath | |
| CN116840379A (en) | Method for measuring difference of carbon dioxide in atmosphere and human body expiration by using carbon dioxide family | |
| Norwood et al. | Breath ammonia depletion and its relevance to acidic aerosol exposure studies | |
| Schoeller et al. | Rapid 18O analysis of CO2 samples by continuous‐flow isotope ratio mass spectrometry | |
| Maurer et al. | Wash-out of ambient air contaminations for breath measurements | |
| Weiss et al. | A selective reagent ion-time-of-flight-mass spectrometric study of the reactions of O2+· with several volatile halogenated inhalation anaesthetics: potential for breath analysis | |
| Marder et al. | A multiple‐method comparative study using GC–MS, AMDIS and in‐house‐built software for the detection and identification of “unknown” volatile organic compounds in breath | |
| CN112461969A (en) | Gas chromatography analysis method for seven gases in human body exhaled breath | |
| Slingers et al. | Real-time selected ion flow tube mass spectrometry to assess short-and long-term variability in oral and nasal breath | |
| Glass et al. | Pulmonary diffusing capacity in reptiles (relations to temperature and O 2-uptake) | |
| Smith et al. | Minimising the effects of isobaric product ions in SIFT-MS quantification of acetaldehyde, dimethyl sulphide and carbon dioxide | |
| Heneghan et al. | Measurement of metabolic gas exchange during anaesthesia: A method using mass spectrometry | |
| CN111781284B (en) | Method for identifying light water, heavy water and heavy oxygen water by using mass number-abundance ratio method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |