FORFARANDE OCH MEDEL FOR BESTEMNING AV BETA-LAKTAMASAKTIVITET

摘要

1408391 Microbiological testing GLAXO LABORATORIES Ltd 22 Sept 1972 [7 Oct 1971] 46798/71 Heading C6F [ Also in Divisions C2 and G1] Enterobacter cloacae P99 and its mutant P99(M) cultured on agar are distinguished from one another by addition to each agar plate of a few drops of a solution of the cephalosporin derivative diphenyl methyl (6R, 7R)-3-(2,4 dinitrostyryl)-7-(2-thienyl-acetamido)-ceph-3-em- 4-carboxylate, when the colonies of P99 give a red colour while the colonies of P99(M) do not.