Particle Filtration Problem
ae55 at cityscape.co.uk
Fri Dec 6 14:43:38 EST 1996
Can anyone suggest an inert membrane for the filtration of plasma samples
containing variable levels of protein precipitate (eg denatured protein)
I am having problems reproducibly filtering these samples using 0.45
polypropylene filter. Some are OK but others block. It is a particular
problem if the plasma is buffered at high or low pH .. which causes
precipitation. I would prefer to avoid a centrifugation step.
Any suggestions would be gratefully received.
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