http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113624798-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ef1ba6606d8d8704d0708ba87102c4c8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N24-082 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N24-08 |
| filingDate | 2021-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28e8ae29b88bc03ce58f81c236e18e06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a98dd6e7b142aea075a27140bc2ad2be http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ce2768c4b5f174a025b90ea36fcbbd7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a0827cd329904cf267879a4f0bd4eb0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9d3cbe614abda5173e5afa22451fb3fc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62edb52a7772355f1d33443a62ff0f87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_732adc58e4d60ff1991f751b7448cd53 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_35b4bbe9468f9070e435236e80100b96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1cfe1dab3fa9963a7c57ead17fad0a7d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_30f353d8ad7e6e7b3125de04fa6c97eb |
| publicationDate | 2021-11-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113624798-A |
| titleOfInvention | Method for measuring content of gutta-percha by quantitative nuclear magnetic resonance hydrogen spectrum |
| abstract | The invention belongs to the technical field of analysis, and particularly relates to a method for determining the content of gutta-percha by quantitative nuclear magnetic resonance hydrogen spectrum. The method comprises the steps of eliminating the interference of impurities in a solvent and hydrogen peaks of the solvent and the signal interference between a detected component and the impurities by setting parameters in a specific detection process, setting a pulse flip angle and a relaxation time of a nuclear magnetic resonance spectrometer by a longitudinal relaxation time T1 value, and detecting a nuclear magnetic hydrogen spectrum of a solution to be detected by the nuclear magnetic resonance spectrometer. Finally, the determination integration is accurate, and the detection result has good reproducibility. The method is quick, and only a high-purity reference substance is needed as a reference, and a standard substance of a target test substance is not needed to be used as an external standard. The method can rapidly, accurately and stably determine the content of the gutta-percha. The error of direct weighing after conventional application and purification is overcome. The method has the advantages of low cost, simple operation, accurate result, no need of a gutta-percha standard substance during sample testing, good repeatability and the like, and can quickly evaluate the content of the gutta-percha in the eucommia ulmoides extract. |
| priorityDate | 2021-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.