http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106124689-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N31-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N31-16 |
| filingDate | 2016-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106124689-B |
| titleOfInvention | The assay method of total nitrogen content in a kind of urea ammonium nitrate solution |
| abstract | The present invention relates to the assay methods of total nitrogen content in the urea ammonium nitrate solution that a kind of nitrogen content is 27% ~ 33%, the concentrated sulfuric acid is added in this method in urea ammonium nitrate solution, convert amidonitrogen to ammonium nitrogen, then it is added and determines nitrogen alloy, convert various forms of nitrogen to ammonium nitrogen successively, add sodium hydroxide, by ammonium nitrogen be converted into ammonia distill out be used together boric acid solution absorb, using sulfuric acid standard titration solution direct titration, total nitrogen content is calculated.The present invention is compared to direct titrimetric method after back titration after existing distillation and distillation, step is reduced, it is easier to be quick, analysis process greatly shortens, the factors such as the complicated substrate component coexisted and manual operation are to determination influences very little, the interference performance of method enhances, and improves accuracy and the precision of result, analytical control cost is very low. |
| priorityDate | 2016-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.