| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T436-25125
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T436-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T436-200833
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T436-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T436-173845 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01J49-0009
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L1-1857 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-00 |
| filingDate |
2003-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ba74a8bb475d4b56068fb76b3e93a31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9739bcf63674b1864d1dc1eec9fd86dd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e4f7c3d40847d11a8832645543bf978 |
| publicationDate |
2005-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2005070022-A1 |
| titleOfInvention |
Method of analysis of aldehyde and ketone by mass spectrometry |
| abstract |
Method of identification and quantitative analysis of aldehyde(s) and/or ketone(s) in a sample by mass spectrometry using stable isotope labeled internal standard is provided. Said internal standard is prepared by reaction of an authentic sample of said aldehyde(s) and/or ketone(s) with a stable isotope labeled reagent, and is added to a sample containing said aldehyde(s) and/or ketone(s). Said aldehyde(s) and/or ketone(s) in said sample is then quantitatively converted to a chemical compound of identical structure, except the stable isotope atoms, as that of said internal standard using a non-labeled reagent. Said sample is then extracted and the extract is analyzed by mass spectrometry. Identification and quantification of said aldehyde(s) and/or ketone(s) are made from a plot of ion ratio of said converted aldehyde and/or ketone to said internal standard versus aldehyde and/or ketone concentration. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104483430-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3586137-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014147926-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104483430-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110392830-A |
| priorityDate |
2003-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |