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Different counts in MacConkey Agar

david.lawton1 david.lawton1 at ntlworld.com
Sat Jun 3 03:50:34 EST 2000

> It looks like I will have to do MF on 100ml samples with low coli
> counts.
> The TPC are going to be a lot more variable and possibly higher counts
> that will not? require a 100ml sample. Is it normally ok to plate a 1,
> 2, or 5ml sample rather than diluting the originaal sample and then
> filtering 100ml.
>  I havent done MF before.
> Thanks to all of you for your contributions must fly Im late for work
> Lynn

1ml for your plate counts.
MF is much easier that  MPN, a lot less tubes and fewer false positives.


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