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. Author manuscript; available in PMC: 2010 Sep 4.
Published in final edited form as: J Chromatogr A. 2009 Jul 10;1216(36):6365–6376. doi: 10.1016/j.chroma.2009.07.005

Figure 3.

Figure 3

Example of an ε calculation using the binarized SEM image from Figure 2. Black areas are the solid polymer matrix, white areas are the accessible pore space for an arbitrary probe diameter of 0.66 μm, and grey areas are inaccessible to this probe size. Same image dimensions as in Figure 2 (32 × 26 μm).