Ampicillin plates

Hayssam Zakaria zakaria at
Tue Dec 12 04:42:29 EST 1995

We keep an Amp-Stock (25 mg/ml) at 4°C and had (once) a problem of
insterile plates. After a long search we found that the Amp-Stock in the
fridge was causing the problem. Some kind of bacteria didn't mind the
ampicillin and the cold temperature. If you keep your Amp in a similar
fashion I suggest you filter it prior to use (<0.45 µm)


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