simple question

Victor L. levenson at
Wed Oct 24 15:45:30 EST 2001


When I was poor AND lazy I used old Amp plates by adding amp to the
plating suspension. Usually there is ~15 ml of agar on 100 mm plate,
so you can calculate how much amp to add {+/_ 20% but still works)

If you do that make sure agar has not dried out - that usually means
you have to pour new ones. 



On 24 Oct 2001 16:51:13 +0100, szatmz01 at (Zoltan
Szatmary) wrote:

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>Hi, I have only one question concerning ampicillin plates:
>how long can be stored at 4 degrees? (I have prepared them more than a
>year ago...)
>Thank you in advance.
>Sincerely, Zoltan
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