http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112378899-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e9a071b2b172ac87c404569da6e3b834 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-73 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-73 |
| filingDate | 2020-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_94825a588ed2ee1c1aaab165773cbd8e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cee5f0b047a0a702a6d4ca22a2b32335 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d151e7f3c8361551320d432ba7240cb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5596a99a1eb689fa40a7fd0f1fb2e86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7d977364a132fd449405eaf6459e6e1e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de365424e2a52c39d558d3e82e75fe69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4379d83f3c640087b43237c4cdf0486d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e66c1531c302ce2c6dbcaa38c485117 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_666c2a116bbebab96bb3071cc996c410 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_21d437b2c4582a38946ed18acdc1b912 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eccdaaeb3c50f3c7b7f415bf32779abe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27c04cf44065e54879d4e5bb122dd26c |
| publicationDate | 2021-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112378899-A |
| titleOfInvention | Method for determining gold in crude lead sample by low-temperature separation ICP-AES (inductively coupled plasma-atomic emission Spectrometry) method |
| abstract | A method for determining gold in a crude lead sample by a low-temperature separation ICP-AES method comprises the steps of dissolving the crude lead sample completely by dilute nitric acid, adding hydrochloric acid to precipitate lead, and boiling at low temperature for 5-15min to completely dissolve gold. Evaporating to remove acid to a small volume in the presence of a protective agent, cooling a sample to 0 ℃ by using an ice water mixture or a constant-temperature refrigerator, adding 60-80mL of absolute ethyl alcohol, further reducing the solubility of lead chloride, filtering and separating after 2 hours, evaporating and removing the ethyl alcohol in the filtrate, adding the protective agent again, slightly boiling to evaporate to a small volume, and carrying out constant volume determination. The method simply and skillfully separates the lead from the gold by precipitating the lead through the low-temperature ethanol. Experiments show that the solubility of lead chloride in 60-80% of glacial ethanol is only 0.1g, and the method utilizes the characteristics that the solubility of lead chloride in the glacial ethanol is reduced and the lead chloride is insoluble in ethanol, so that lead precipitate is separated from gold. |
| priorityDate | 2020-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.