http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-203772732-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e0cb317a811b9f776991e21a8e1bffee |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-31 |
| filingDate | 2014-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e0f415129a8ec66d09fbb063d7360c5 |
| publicationDate | 2014-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-203772732-U |
| titleOfInvention | System for measuring calcium element content in tungsten product |
| abstract | The utility model provides a system for measuring calcium element content in a tungsten product. The system is characterized by sequentially comprises a reaction solution generating device, a to-be-measured solution generating device, a calcium standard solution generating device, a calcium standard solution purifying device, and an atomic absorption spectrum spectrophotometer, wherein the reaction solution generating device is communicated with a sample vessel by a hydrogen peroxide feeder, an ammonium hydroxide feeder, a nitric acid feeder and a first perchloric acid feeder, respectively; the sample vessel is detachably arranged on a heating device; a first strontium chloride solution feeder and a first lanthanum oxide solution feeder of the to-be-measured solution generating device are communicated with a to-be-measured solution container; a hydrochloric acid solution feeder of the calcium standard solution generating device is communicated with a calcium carbonate vessel; a second strontium chloride solution feeder and a second lanthanum oxide solution feeder of the calcium standard solution purifying device are communicated with a calcium standard container, respectively. The system is simple, fast, high in measurement accuracy and low in cost, and the relative measurement error is less than 7.5%. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103712933-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3085206-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3614140-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103712933-B |
| priorityDate | 2014-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.