http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106872431-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-6404 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-64 |
| filingDate | 2017-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106872431-B |
| titleOfInvention | The method that Atomic fluorophotometry detects arsenic content in troilite or pyrite concentrate |
| abstract | The invention discloses the methods of arsenic content in a kind of Atomic fluorophotometry detection troilite or pyrite concentrate, comprising: and (1) troilite or iron concentrate are dried to constant weight, crushed, sieving；(2) it takes the sample 0.2g of sieving in 150mL container, adds 15mL hydrochloric acid, dissolve by heating；Then 5mL nitric acid is added, is heated to wet salt；(3) hydrochloric acid 5mL is added in wet salt sample, it is cooling, it moves in 100mL volumetric flask, thiourea and ascorbic acid mixed liquor or thiourea solution 10mL is added, is diluted with water constant volume；Dry filtering is carried out, initial 20mL filtrate is discarded, pipettes 1mL filtrate into 50mL volumetric flask, add water dilution constant volume, obtain sample solution；(4) using the fluorescence intensity of sample solution obtained in atomic fluorescence spectrophotometer measurement (3), the content of arsenic in troilite or pyrite concentrate sample solution is found out according to standard curve.The present invention can effectively improve the dissolution completeness of arsenic in troilite and iron concentrate, the reducing degree for improving arsenic, the loss late for reducing arsenic, the accuracy and precision for improving arsenic in troilite and iron concentrate. |
| priorityDate | 2017-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.