http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SU-1610411-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fb79cc0a76f7fcfe04d269b05c2c10dc |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-78 |
| filingDate | 1988-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1990-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4548cea36d62cec175d7236f60aff143 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07f4b06ea6e4be6083e07580578eb13e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_873141546b791ca17ef81b3284cabeea |
| publicationDate | 1990-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SU-1610411-A1 |
| titleOfInvention | Method of qualitative determination of isomers of aminobenzoic acid |
| abstract | The invention relates to analytical chemistry, in particular, a method for the qualitative determination of the isomers of aminobenzoic acid, which can be used in pharmacy. The goal is to increase the selectivity of the method. The determination of lead treatment of the analyzed samples 1,0 . 10 -4 - 1.0 . 10 -3 molar solution of potassium hexachlorosmitate at PH 9-11 in the presence of hydrogen peroxide at 70-80 ° C, followed by visual observation of the color: the ortho isomer gives a crimson-violet color, the para isomer is emerald green blue The method allows analyzing mixtures of isomers, since up to 20% of the impurities of one isomer do not affect the appearance of the qualitative reaction of the dominant isomer. In addition, it allows the determination of N-phenyl and N-methyl derivatives of anthranilic acid. 1 tab. |
| priorityDate | 1988-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.