Zobrazeno 1 - 10
of 13
pro vyhledávání: '"N B, DZEGILENKO"'
Autor:
N B, Dzegilenko
Publikováno v:
Gematologiia i transfuziologiia. 35(5)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::d9a6d9c79e46155b8aa0168f78cbd303
https://pubmed.ncbi.nlm.nih.gov/2118467
https://pubmed.ncbi.nlm.nih.gov/2118467
Publikováno v:
Antibiotiki. 21(8)
A possibility of using the biological method of rifamycin B activity determination in the fermentation broth and dry preparations of various purity levels was studied. It was found that the biological method was useful only for determination of rifam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4440d927e935e3273252c4be793c9152
https://pubmed.ncbi.nlm.nih.gov/11738
https://pubmed.ncbi.nlm.nih.gov/11738
Publikováno v:
Antibiotiki. 20(2)
A quantitative spectrophotmetric method for the assay of variamycin in commercial samples was developed. It was based on the measurement of the optical density of variamycin solutions in 0.01 N hydrochloric acid at a UV spectrum wave length of 412 nm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::5f2705b23e2d2f49e928710950665544
https://pubmed.ncbi.nlm.nih.gov/235239
https://pubmed.ncbi.nlm.nih.gov/235239
Publikováno v:
Antibiotiki. 23(3)
Four mutants of Proactinomyces (Nocardia) mediterranei, an organism producing rifamycin B were subjected to electron microscopic investigation. The mutants differed in the biosynthetic activity. The investigation showed correlation between the length
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::373eaf0864f9c53b540f90fdfdae58b4
https://pubmed.ncbi.nlm.nih.gov/637526
https://pubmed.ncbi.nlm.nih.gov/637526
Publikováno v:
Antibiotiki. 21(2)
A method of chromatography in a thin layer of Silica Cel No. 2 was developed for rifamicin B, rifamicin complex and some admixtures. Extracts of rifamicin B in an organic solvent, aqueous buffer reextracts and dry preparations of rifamicin B were ana
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::2e907f44e0a9616314cf3d964d4e3c93
https://pubmed.ncbi.nlm.nih.gov/5945
https://pubmed.ncbi.nlm.nih.gov/5945
Publikováno v:
Antibiotiki. 21(11)
7-Phenoxyacetamidodesacetoxycephalosporanic acid, an intermediate product in synthesis of cephalexin, was prepared by oxydation of phenoxymethylpenicillin into the respective sulphoxide and transformation of the latter. The UV-spectra of the reaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::0dd33b72377e439fb2ce22c0d4d33ce1
https://pubmed.ncbi.nlm.nih.gov/1020933
https://pubmed.ncbi.nlm.nih.gov/1020933
Autor:
N B, Dzegilenko, V B, Korchagin
Publikováno v:
Antibiotiki. 22(5)
The limits of the use of the methods of direct photometric and differential spectrophotometric determination of rifamycin S containing rifamycin O as an admixture were discussed. The method of direct photometry did not provide determination of rifamy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::ad5db5924e3e97ed8a387a499efa9fa0
https://pubmed.ncbi.nlm.nih.gov/18082
https://pubmed.ncbi.nlm.nih.gov/18082
Autor:
N B, Dzegilenko, V B, Korchagin
Publikováno v:
Antibiotiki. 23(6)
A quantitative method was developed for determination of phenyl ether of phenylmalonic acid (I) in the presence of phenol. The method is based on measurement of the optic density of the characteristic absorption bands of I at 1133 and 1770 cm-1 of IR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::8440fb4614c6f26935266231d2806cc2
https://pubmed.ncbi.nlm.nih.gov/677832
https://pubmed.ncbi.nlm.nih.gov/677832
Publikováno v:
Antibiotiki. 21(4)
A spectrophotometric method for determination of inactive admixtures in oleandomycin phosphate-anhydrooleandomycin was developed. The method was based on measuring optical density of methanol solutions of oleandomycin and its admixtures at a wave len
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::2f4fdf8cebaa5cf2c7a9f26cf904ecb5
https://pubmed.ncbi.nlm.nih.gov/179465
https://pubmed.ncbi.nlm.nih.gov/179465
Publikováno v:
Antibiotiki. 9
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::8b9f680c2ac9f4b877ff2f5efb2f762e
https://pubmed.ncbi.nlm.nih.gov/14239554
https://pubmed.ncbi.nlm.nih.gov/14239554