Electrophoresis method and devices

A method of carrying out simultaneous electrophoresis of multiple samples, comprising the steps of:

• providing an electrophoresis gel-matrix layer having two mutually opposite ends for application of an electrophoresis voltage thereto, an exposed major surface extending between the two ends, and a plurality of wells in the thickness of the layer and open at said exposed surface, wherein the wells are arranged in a plurality of rows each extending transversely of the end-to-end direction of the layer and wherein the wells in successive rows are aligned with each other so as to form columns which are aligned with each other in the end-to-end direction said gel-matrix layer further comprising two slots positioned at opposing ends of the plurality of open sample wells for insertion of electrophoresis electrodes,
• placing each sample in one of each respective well,
• placing an electrophoresis electrode in each of said slots, and
• subjecting all the samples to electrophoresis by applying a voltage in a direction, along the layer of gel material such that the electrophoresis track of each sample will encounter, if sufficiently extended to the well in the next adjacent row and halting application of the voltage prior to transport of each sample to the well in the next adjacent row.