Title:
GREENHOUSE GAS MEASURING METHOD AND MEASURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/218694
Kind Code:
A1
Abstract:
One aspect according to the present invention is a method for measuring, by using gas chromatography (GC), three types of greenhouse gases, CO2, CH4, and N2O, in the atmosphere, the method comprising: a separation step for introducing the atmosphere which may contain three types of greenhouse gas components into a GC column 15 and separating, in the time direction, each component of the atmosphere including said components; a first detection step for using a barrier discharge ionization detector (BID) 16 to respectively detect CO2 and N2O in the gas after the components have been separated in the separation step; a second detection step for using a flame ionization detector (FID) 17 to detect CH4 in the gas after the components have been separated in the separation step; and a quantity processing step for preparing a chromatogram for each on the basis of the detection signals obtained in the first and second detection steps and respectively quantify CO2, CH4, and N2O from the peaks observed in the chromatograms. Using the method according to this aspect, CO2, CH4, and N2O in the atmosphere can be measured simultaneously in a simpler manner with high sensitivity.
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Inventors:
SHIMBO EMIKO (JP)
Application Number:
PCT/JP2022/048549
Publication Date:
November 16, 2023
Filing Date:
December 28, 2022
Export Citation:
Assignee:
SHIMADZU CORP (JP)
International Classes:
G01N30/88; G01N27/626; G01N27/68; G01N30/64; G01N30/68; G01N30/78; G01N30/86
Domestic Patent References:
| WO2017082264A1 | 2017-05-18 |
Foreign References:
| JP2019174181A | 2019-10-10 | |||
| JP2006275844A | 2006-10-12 | |||
| JP5136300B2 | 2013-02-06 |
Attorney, Agent or Firm:
KYOTO INTERNATIONAL PATENT LAW OFFICE (JP)
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