Antibiotic Assay Medium No.39 (DM146U) is recommended for the microbiological assay of Neomycin and Streptomycin using Klebsiella pneumoniae as the test organism, in compliance with USP.
| Ingredients | Gms / Liter |
| Peptone | 5.00 |
| Beef extract | 1.50 |
| Yeast extract | 1.50 |
| Dextrose | 1.00 |
| Sodium chloride | 3.50 |
| Dibasic potassium phosphate | 3.68 |
| Monobasic potassium phosphate | 1.32 |
| Final pH: 7.9 ± 0.1 at 25°C | |
| Formula may be adjusted and/or supplemented as required to meet performance specifications | |
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