http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103257194-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a5aa398a25ecbd03362eb05621398343 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N30-02 |
| filingDate | 2013-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23dd6bb3a985926f11a1fed978ef6312 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_55c20a5549bad976987de6a7f51e56fb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_447dadceae23569a54b784f5bbefb0fe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce011c587af40b7d6f2a4b588912ffdd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4dae86d9a34461aef15d78da42c325f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7a55ababd4b279b4bfc46b14ea702cd0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be3fc7e94bbac0998f6ae372f539f8bb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd64678a3f6e90e1d0904cb1923ef055 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45c055941a3a29919daa093686082e33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bdd64050a1b3cc49ca1000ba94239403 |
| publicationDate | 2014-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103257194-B |
| titleOfInvention | GC-MS/MS (Gas chromatography - tandem mass spectrometry) method for simultaneously analyzing three polycyclic aromatic hydrocarbons and four tobacco-specific nitrosamines in main stream smoke of cigarettes |
| abstract | The invention discloses a GC-MS/MS (Gas chromatography-tandem mass spectrometry) method for simultaneously analyzing three polycyclic aromatic hydrocarbons and four tobacco-specific nitrosamines in main stream smoke of cigarettes. The method comprises the following steps of: taking out a Cambridge filter disc catching granule phase objects of main stream smoke of cigarettes, adding ethyl acetate and an internal standard, carrying out vibrating extraction, carrying out dispersive solid-phase extraction (d-SPE) on extracting liquid, then, carrying out nitrogen-blowing concentration on supernatant, and measuring by using GC-MS/MS. The method provided by the invention overcomes the problems that a sample treatment method can separately detect the two substances in the prior art and the pretreatment is tedious; and a sample pretreatment method and an instrument detection condition are optimized aiming at the granule phase objects of main stream smoke of cigarettes. The method provided by the invention has the advantages that two target objects with large polar phase differences are extracted at the same time by 10mL of ethyl acetate, and the extraction efficiency is high; and compared with the national standard method, the method has the advantages that the consumption of an organic solvent is reduced by a several times to tens of times, and the method has the characteristics of accurate operation, high sensitivity and good repeatability. |
| priorityDate | 2013-06-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.