http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-1807355-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9a6906827e8111243117ac1437268afd |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-78 |
| filingDate | 1990-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1993-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c8102c641b95cd55762c62685e87590e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0e0b307a3d9f47cae99b78142c0990a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8391a673dc6687283e91be6ed2c6633b |
| publicationDate | 1993-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-1807355-C |
| titleOfInvention | Method for cephamezin detecting |
| abstract | Usage: the invention relates to analytical chemistry, namely, to methods for the quantitative determination of sodium salt 13 {5-methyl-1,3,4-thiadiazolyl-2-thiomethyl) -7- {1-tetrazolyl-acetamido) - -3 Cephem-41 carboxylic acid (cefamezin - a drug). SUMMARY OF THE INVENTION The analyzed sample of the preparation is first treated with a solution of hydrochloric acid under heating (80-90 ° C) for 40-50 minutes, then the pH of the solution is adjusted to 3.0-4.0 by the addition of a solution of sodium hydroxide. A solution of glutaconic aldehyde is prepared separately: pyridyl-pyridinium chloride is treated with 0.1 N. sodium hydroxide solution for 1-2 minutes, followed by acidification with hydrochloric acid to a pH of 1.5-2.0. Next, a solution of the test sample in an acidic medium created by a universal buffer solution of pH 3.6-4.0 in the presence of a sodium chloride stabilizer (chemically pure) is added to a solution of glutaconic aldehyde, and colored solutions are measured at 490 nm. The sensitivity of the reaction is 10 μg / ml. 2 tab. Ј |
| priorityDate | 1990-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.