http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-208953445-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e74277852f1aae0a3ff13f59a65456d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-31 |
| filingDate | 2018-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37138b35a7ac935daee650cea42983b2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_382834080b2acf2217c709f1936e409d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00039691f55080785d8511ff0d44fc88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_09647230bcee74d8c4fb62f6d930c969 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1a4115dcb687e0801c87424e4f87d10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a376e1fb9e36ac4611a3af0221a73568 |
| publicationDate | 2019-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-208953445-U |
| titleOfInvention | A kind of glyoxal or methyl-glyoxal standard gas generating apparatus |
| abstract | The utility model discloses a kind of glyoxal or methyl-glyoxal standard gas generating apparatus, including nitrogen cylinder, mass flow controller, U-tube, cryotrap, mixing chamber, chamber enhancing absorption spectrophotometry and gas piping, wherein: the high pure nitrogen in nitrogen cylinder enters gas piping through mass flow controller, and triple valve is passed sequentially through on gas piping and connects the U-tube, mixing chamber and chamber enhancing absorption spectrophotometry；The U-tube is placed in cryotrap, and glyoxal pure material or methyl-glyoxal pure material are placed by bottom centre.High pure nitrogen by cryotrap in U-tube glyoxal or methyl-glyoxal be eluted in mixing chamber, and be diluted, mix, carry out accurate quantitative analysis subsequently into chamber enhancing absorption spectrophotometry.The present apparatus can glyoxal without interruption, methyl-glyoxal calibrating gas for a long time, gas concentration is accurate and reliable, fluctuating range is small, has the characteristics that high stability, flexibility height, applied widely. |
| priorityDate | 2018-09-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.