Patent ID: 7491305

Claim:
An analytical system comprising: a substrate including: a central reservoir region, a plurality of electrophoretic channels in fluid communication with, and emanating substantially radically from, the central reservoir region, the channels being coplanar with each other, and each channel having (i) a proximal end which is linked to the central reservoir region, and (ii) a distal end, a first chamber that is linked by a first passageway in fluid communication with the distal end of a first of the plurality of eleetrophoretic channels, and a second chamber that is linked by a second passageway in fluid communication with the distal end of a second of the plurality of electrophoretic channels; a mechanism for rotating the substrate about a central axis of rotation that is perpendicular to the plane of the channels; and a plurality of electrodes for applying a voltage potential between the first chamber and the central reservoir region and between the second chamber and the central reservoir region.