Centrifugally accelerated electrophoresis

The two-dimensional separations in which the different driving forces are employed simultaneously are reported here for completeness as, except for curtain electrophoresis, they never reached a wide range of applicability there are (except the already mentioned curtain electrophoresis) electrophoresis with crossed currents employed simultaneously at right angles [24,25], centrifugally accelerated electrophoresis [26] and electromagnetophoresis [27],... 

Centrifugally accelerated electrophoresis, as described by McDonald et al. [26], is based on the fact that centrifugal force drifts the electrolyte (mobile phase) from the centre of the circular paper sheet to the collecting cups, and the electric field that acts perpendicularly to the direction of the centrifugal force drifts the charged particles to the positive and negative poles. 

A number of techniques are used commercially to accelerate emulsion breakdown. Mechanical methods indude centrifugal separation, freezing, distillation and filtration. Another method is based on the principle of antagonistic action - i.e. the addition of O/W-promoting emulsifiers tends to break W/O emulsions, and vice-versa. Emulsions can also be broken by the application of intense electrical fields, the principal factors involved being electrophoresis in the case of O/W emulsions and droplet deformation in the case of W/O emulsions. 

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