http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2102736-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_48b3e1f9ac42453b1283048da74d443a http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_65c8b9df0e379c881ea365f96925e10d http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fc04cd9e96f0288b926874f9265b08bb http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9c694d9e54cc2f53b7758d0ffa80af35 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-48 |
| filingDate | 1996-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1998-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3046906b6f827698bd5b0a6d924f3618 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_279beaba4e8347bc56bcef6fc22506f1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dcb64df788c49cc59b7a0e714dc02edd |
| publicationDate | 1998-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2102736-C1 |
| titleOfInvention | Method of inversion-volt-amperometric determination of heterovalent arsenic forms in aqueous solutions |
| abstract | FIELD: analytical chemistry. SUBSTANCE: method is based on electroaccumulation of As (III) on stationary mercury electrode in the presence of ions Cu 2+ followed by recording curve of cathode reduction of concentrated copper arsenide. Method involves determination of As (III) content at background of 0.6 M HCl + 0.04 M N 2 H 4 HCl + 50 mg/l Cu 2+ by height of inversion cathode peak at potential (-0.72) V, chemical reduction of As (V) to As (III), measurement of total water-soluble content of arsenic and determination of As (V) content by concentration difference of total and trivalent arsenic. Method involves additional addition of HCl, KJ and Cu 2+ to solution where As (III) content has been determined, Chemical reduction of As (V) to As (III) is carried out in background electrolyte which has the following components: 5.5 M HCl + 0.1 M KJ + 0.02 M N 2 H 4 2 HCl + 100 mg/l Cu 2+ . Electroaccumulation of arsenic is carried out at potential (-0.55 ± 0.01) V, cathode volt-ampere curve is recorded at the range of voltage from (-0.55) V to (-1.0) V and total arsenic content in solution is determined by height of inversion peak at potential (-0.76 ± 0.01) V. EFFECT: improved method of determination. 8 dwg |
| priorityDate | 1996-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.