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. Author manuscript; available in PMC: 2011 May 15.
Published in final edited form as: J Memb Sci. 2010 May 15;354(1-2):198–205. doi: 10.1016/j.memsci.2010.02.047

Fig. 4.

Fig. 4

Breakthrough curves for passage of Au-colloid solutions through 5-µm nylon membranes modified with 1-bilayer PSS/PEI, PSS/PAH, and PSS/PDADMAC films. Absorbance, which is normalized to the absorbance of the feed solution, is proportional to colloid concentration. The colloid feed solution contained 0.05 mM Au and was pumped through the membrane at a flux of 19 cm/h.