Patent ID: 6979424

Claim:
A device for analyzing a sample, the device comprising: a) a body having: i) a reaction chamber for chemically reacting the sample; ii) a separation region for separating components of the sample; iii) a transition region connecting the reaction chamber to the separation region; and iv) at least one mechanical valve in the transition region for controlling fluid flow between the reaction chamber and the separation region; b) a first electrode coupled to the body adjacent the reaction chamber; c) a second electrode coupled to the body adjacent the transition region; and d) a third electrode coupled to the body adjacent the separation region, the electrodes being positioned such that when a first voltage is applied between the first and second electrodes, the components in the sample are transported from the reaction chamber to the transition region, and such that when a second voltage is applied between the second and third electrodes, the sample components are transported into the separation region.