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[ noun ] separation of substances in solution my means of their unequal diffusion through semipermeable membranes
Used in print (M. Yokoyama et al., "Chemical and serological...)After dialysis the sample was centrifuged and the supernatant placed on a * * f cm column of DEAE-cellulose equilibrated with starting_buffer . The small amount of insoluble material which precipitated during dialysis was suspended in approximately 5 ml of starting_buffer , centrifuged , resuspended in 2.5 ml of isotonic saline and tested for antibody activity . For protein identification , fractions from the column were concentrated by pervaporation against a stream of air at 5 ` C or by negative pressure dialysis in an apparatus which permitted simultaneous concentration of the protein and dialysis against isotonic saline . For protein identification , fractions from the column were concentrated by pervaporation against a stream of air at 5 ` C or by negative pressure dialysis in an apparatus which permitted simultaneous concentration of the protein and dialysis against isotonic saline . Because negative pressure dialysis gave better recovery of proteins , permitted detection of proteins concentrated from very dilute solutions and was a gentler procedure , it was used in all but the earliest experiments . Related terms chemical_analysis apheresis hemodialysis plasmapheresis osmosis dialyse |
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