| 摘要 |
<p>Apparatus for the migration of at least one solute macro species in an electric field from a first solvent stream to a second solvent stream in relatively large quantities. The apparatus comprising a pair of electrodes positioned within a housing, each electrode being positioned adjacent one of a pair of opposed ends of the housing and each being surrounded by means to direct a flow of a suitable buffer past the electrode, the housing having first inlet means through which the first solvent stream is introduced into the housing and outlet means therefor, second inlets means through which the second solvent stream is introduced into the housing and outlet means therefor, and a plurality of electrophoretic membranes extending in substantially parallel spaced apart, array. The membranes are positioned intermediate the electrode and serve to separate the first solvent stream from the second solvent stream. The first solvent stream is moved through the housing in pulsitile or stepwise fashion and the voltage across the electrodes is periodically stopped or reversed. Adjacent membranes are separated by pairs of woven screens the meshes of which are so selected that they will not nest together. The housing may be connected to containers for the various solutions and the source of electric potential by a single bundle of tubes and wires forming an umbilicus. The housing is thereby rendered capable of being moved independently of such containers.</p> |
