Abstract: According to a first aspect, the invention relates to a support (1, 10) for an electrophoretic gel film comprising a first film (2) having a plurality of lips formed by stamping, the lips forming a plurality of retention points for an electrophoretic gel film to be received on the support. The invention also relates to an electrophoretic element for use in electrophoretic separations, comprising the support according to the first aspect, coated with an electrophoretic gel film, as well as to the use of such an electrophoretic element.

Abstract: According to a first aspect, the invention relates to an apparatus for effecting electrophoresis of biomolecules in non immersed gels, comprising means (2, 3, 4) for applying an electrical potential to the gel medium, means (5, 6, 7) for sensing the effective electrical field strength in the gel medium, and means (8) for altering the applied electrical potential in response to the sensed, effective electrical field strength in the gel medium. The invention also relates to an electrophoresis method in which the electrical potential applied to the gel medium is automatically controlled.