Whatman unfilter plates -vacuum

teresa_mogul at my-deja.com teresa_mogul at my-deja.com
Thu Oct 28 22:59:37 EST 1999

I wondered whether anyone uses Whatman polyfiltronics unifilter plates.
These plates extract DNA from bacteria.
My question is of reproducibility. I can sometimes detect 50cfu/ sample
by PCR of the extract and othertimes I can get no where near this
senstitivity. Do anyone know how reproducibly the plates are from one
well to another or from one plate to another.
Also I use the plate a row at a time so by the time I get top the 8th
row the fibres have been subject to much vacuum already. Although there
has been no liquid in these well previously.

Thanks for any help

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