http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111007183-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-8679 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-02 |
| filingDate | 2019-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111007183-B |
| titleOfInvention | Method for measuring impurities in 3,3, 3-trifluoroethanol by gas chromatography |
| abstract | A method for measuring impurities in 3,3, 3-trifluoroethanol by gas chromatography belongs to the technical field of chemical product analysis methods. The stationary phase of the chromatographic column is: DB-1301 capillary column, column temperature of chromatography: -20 to 280 ℃; the sample amount is 0.1-10 mu L; carrier gas flow: 0.5-5.0 mL/min; the split ratio is as follows: 5: 1-100: 1; vaporization chamber temperature: 100-300 ℃; detector temperature: 150-300 ℃; the impurity component is one or more than two of the following combinations of 1, 1-difluoroethylene, 1,1, 1-trifluoroethane, trifluoroacetic anhydride, ethyl trifluoroacetate, trifluoroacetic acid and 1,1, 1-trifluoro-2-chloroethane. The invention provides a method for simply, conveniently, accurately, quickly and reliably measuring the content of impurities in the production of 3,3, 3-trifluoroethanol by using a gas chromatography, and is suitable for popularization in the industry. |
| priorityDate | 2019-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.