| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9540f29726817de134c4044847e9f5a8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-8845
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2220-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-884
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2030-025 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-88
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-285
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-01 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-88 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-285
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-42 |
| filingDate |
2005-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_887b433d5de4386168df695938f280eb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_841ee157f460ec7cc29e449345055928
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39e82c9c419e0f194a8980da6d4faa8d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_81b3401f520e783d9ed27bc044fd0647 |
| publicationDate |
2007-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
BR-PI0506698-A |
| titleOfInvention |
chromatographic method for analysis of both process and finished sevoflurane |
| abstract |
CHROMATOGRAPHIC METHOD FOR ANALYZES IN PROCESS AND FINISHED SEVOFLURAN. A method wherein the organic substance found in a crude sevoflurane can be separated, identified and quantified using a CARBOWAX <3> capillary gas chromatographic column (polyethylene glycol) or an alkyl polysiloxane capillary gas chromatographic column. A process control method for the production of sevoflurane is also provided, wherein the content of a particular component in one of the following steps is determined, and, assuming this as a variable, the condition of treatment of the step is adjusted: 1) an extraction, or cooling, step to form two layers and / or distillation of a mixture of crude sevoflurane and hydrogen fluoride (HF) to isolate most sevoflurane and 2) an optional step purifying crude sevoflurane and 3) a step of distilling crude sevoflurane. Also provided is a method for determining the level of impurities of a purified sevoflurane which is acceptable for use in human / animal anesthesia. |
| priorityDate |
2004-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |