I am looking for a filtration method to collect small volumes of blood plasma?

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Marshall D Mccue

Why can't you centrifuge the microhematocrit tubes? You don't need a machine to do this.

You may also use a piece of filter paper. This is what many of the automated diabetic test devices use I think.

Helmut Mett

Thanks Marshall. Can you please let me know the provider of such systems separating plasma without using a centrifuge?

Hans-Jürgen Kolde

http://www.americanlaboratory.com/913-Technical-Articles/19690-BIOTECHMicrofiltration-Technology-A-Sensible-Approach-to-Automating-Sample-Preparation/