B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
204/171, 204/99.
B01D 57/02 (2006.01) B01D 61/14 (2006.01) C07K 1/24 (2006.01) C07K 1/26 (2006.01) G01N 27/447 (2006.01)
Patent
CA 2002816
Abstract A process and apparatus for the continuous separation of electrically charged macromolecular compounds, such as proteins, by forced-flow membrane electrophoresis is provided. Said process is conducted in an electrophoretic cell comprising a membrane compartment, divided by a micro- or ultrafiltration membrane into a feed and permeate cell, and electrode compartments being partitioned from the membrane compartment with ion-exchange membranes, which are impermeable to the macromolecular compounds, and have virtually no permeability to salts. The electrophoretic process comprises the steps of recycling a mixed solution of the charged compounds which are dissolved in a separation buffer through the feed cell, subjecting of the solution to a pressure- driven membrane separation, applying an electric field across the membranes and the solution to cause electrophoretic migration of the charged compound and to separate them, and withdrawing the charged compounds thus separated. The process achieves separation of charged compounds having differencesof their isoelectric points in a range of as low as 0.1 to 0.2. The process is very useful to remove charged contaminants from the desired compounds.
Gilron Jack
Ketraro Reuven
Linder Charles
Perry Mordechai
Aligena Ag
Fetherstonhaugh & Co.
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