http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0953148-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_382ccfc2ebebcaee15aa7cda4cee86bc |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N33-0006 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-3504 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-35 |
| filingDate | 1998-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a037e84209c94bafc51aa1fdabe04d3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a9496fdcf78cf79da5bfc6d8df65c41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_881f779da7c875808182ff8b9a15d573 |
| publicationDate | 1999-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0953148-A1 |
| titleOfInvention | Stable isotope measurement method and apparatus by spectroscopy |
| abstract | In accordance with the present invention, a test gas sample containing carbon dioxide 13CO2 as a component gas is introduced into a cell, then the absorbance of light transmitted therethrough at a wavelength suitable for the component gas 13CO2 is determined, and the concentration of the component gas is determined on the basis of a calibration curve prepared through measurement on test gas samples each containing the component gas in a known concentration. Further, the concentration of water vapor contained in the test gas sample is measured, and the concentration of the component gas in the test gas sample is corrected in accordance with the measured water vapor concentration on the basis of a correction curve prepared through measurement on the test gas samples each containing water vapor in a known concentration. With the spectrometry, the concentration ratio of the component gas can precisely be determined and corrected by measuring the moisture content in the test gas sample. |
| priorityDate | 1997-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.