Charge-mosaic membranes: dialytic separation of electrolytes from nonelectrolytes and amino acids.
Charge-mosaic membranes were used for dialytic separations of potassium chloride from low-molecular-weight nonelectrolytes and neutral amino acids. The permeability ratio (potassium chloride to uncharged species) ranged from about 6 in the case of methanol to about 86 in that of mannitol. A theoretical model predicts that optimum rates of dialysis should be achieved by dialyzing against salt concentrations other than zero; this prediction was confirmed by experiment. These observations suggest potential applications of mosaics in laboratory separations, industrial processing, and hemodialysis.
D003956:Dialysis; D005998:Glycine; D007474:Ion Exchange; D007688:Kidneys, Artificial; D008353:Mannitol; D008567:Membranes, Artificial; D000432:Methanol; D010649:Phenylalanine; D011189:Potassium Chloride; D014508:Urea
D008567:Membranes, Artificial; D008353:Mannitol; D010649:Phenylalanine; D011189:Potassium Chloride; D014508:Urea; D005998:Glycine; D000432:Methanol