WHATMAN 聚碳酸酯滤膜孔径可靠,微孔分布均匀,膜光滑平整,重复性好Whatman Cyclopore membranes are true pore size microporous membranes featuring sharp cut off and reproducible microfiltration performance characteristic of track-etched membranes. The smooth flat membrane ensures particles are retained on the surface so that they are easily visible under a microscope
