Maintaining ionic permeability of cellulose ester membrane

摘要

This paper reports the results of a series of exper-iments designed to test conditions that would permit NaCl to diffuse through 100 Da molecular weight cut-off (MWCO) and 1000 Da MWCO membranes.The 100 Da MWCO membrane becomes completely impermeable to NaCl when dialyzed against distilled water (DW),but an inclusion of one of a variety of different salts in the dialyzing solution maintains membrane permeability to NaCl.