[The influence of the purity of the standard on the results of determining tetracyline activity using two test cultures].
D001407:Bacillus; D001412:Bacillus subtilis; D001681:Biological Assay; D002751:Chlortetracycline / Q000032:analysis; D002854:Chromatography, Paper; D004058:Diffusion; D004340:Drug Contamination; D008722:Methods; D013752:Tetracycline / Q000032:analysis / Q000592:standards*
D013752:Tetracycline; D002751:Chlortetracycline
Vliianie chistoty standarta na rezul'taty opredeleniia aktivnosti tetrasiklina s dvumia test-kul'turami.