http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104487823-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01J3-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2021-3595 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-55 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-552 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-3577 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-552 |
| filingDate | 2013-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104487823-B |
| titleOfInvention | Method for determining a concentration of a polysorbate species in a mixture |
| abstract | A method for determining a concentration of a polysorbate species, such as polysorbate 20, polysorbate 40, polysorbate 60, or polysorbate 80, in a mixture comprises obtaining a test sample of said mixture, adding an internal standard, preferably azide, to said test sample, obtaining, with a spectrometer, a mid-infrared Attenuated Total Reflectance (ATR) spectrum of the test sample, e.g. by using and ATR-FTIR apparatus, identifying, from the reflectance spectrum, a wavenumber corresponding to the C=0 peak (e. g., 1735 cm-1), identifying, from the reflectance spectrum, a wavenumber corresponding to the internal standard, calculating the area under the curve for said C=O wavenumber, normalized by the internal standard, and comparing said area to a calibration curve to determine the concentration of polysorbate in said test sample. |
| priorityDate | 2012-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 273.