http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109283154-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-3586 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-3586 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-01 |
| filingDate | 2018-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109283154-B |
| titleOfInvention | System and method for detecting volatile organic molecules in exhaled air |
| abstract | The invention provides a detection system and a method for volatile organic compounds in exhaled air, wherein the detection system comprises an alveolar gas separation system and a gas measurement system; the alveolar-gas separation system comprises a ring-down cavity, a pulse laser, a photoelectric detector and a signal processing and control system; the gas measurement system comprises a gas measurement cavity, an emitter, a detector, a terahertz lens and a signal processing system. The invention utilizes the near-infrared cavity ring-down spectrum measurement system to realize the online real-time separation of the dead space gas and the alveolar gas, the concentration of endogenous VOCs in the alveolar gas is two to three times higher than that in an exhaled gas sample mixed with the dead space gas, and the alveolar gas can better reflect the physiological metabolic condition of a human body, thereby eliminating the interference of the dead space gas or other ineffective gases, being beneficial to improving the measurement precision of characteristic molecules and greatly improving the detection sensitivity of the system. |
| priorityDate | 2018-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.