For analyzing the small amounts of proteins (down to 10 pmoles), peptides or amino acids, polyvinylidene difluoride (PVDF) membranes are the most ideal item for tracing down these transferred small molecular weight materials after electroblotting. The UltraScence PVDF/Filter Paper Sandwiches, 0.2 μm, have excellent binding properties for western blotting, dot-blot assays, and other protein or nucleic acid methods such as protein sequencing.
