http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SU-1682866-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e1b1af7e25dc5dbdda747675c9578e40 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N31-22 |
| filingDate | 1989-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1991-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d8a321e117acbd6c10465d67b1d607e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0861ad7d2e02713309fa1214a458acfc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_09e141cdf241c8aa7731f29a9b6ad752 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91d2ae4f58d691bd3241f46e84ec993c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_616954d97a8364b93f80b961959270d7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_361aee3bd1f5a15b8347b09709d9dbd7 |
| publicationDate | 1991-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SU-1682866-A1 |
| titleOfInvention | Method for copper determination in water |
| abstract | The invention relates to methods for determining copper in water by sorption concentration, elution with a solution of an organic reagent and subsequent photometric measurement. The goal is to increase the sensitivity of the analysis. The proposed method for the determination of copper consists in the sorption of copper (II) ions on silica, containing grafted iminodiacetic groups on the surface in an amount of 0.29-0.525 groups / nm2. and subsequent elution of copper with a solution of thioketone Michler in the presence of 0.015-0.15 M sodium dodecyl sulfate. The presence of chelating iminodiacetic groups on the surface of silica allows for the quantitative sorption of copper ions at a sufficiently low content in solutions. The proposed method allows to increase the sensitivity by a factor of 20 to 0.1 µg / l, as well as the selectivity of the analysis. Almost only platinum interferes. 1 zp. F-ly, 1 ill., 6 tab. J |
| priorityDate | 1989-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.