Patent ID: 8329115
Filing Date: 2012-12-11
Classification: B01L,G01N,Y10T

Abstract:
1. An electrokinetic concentration device comprising: at least one concentration unit positioned such that at least a portion of said concentration unit is constructed within, adhered to or contiguous with a first substrate, said concentration unit comprising: at least one first sample microchannel through which a liquid comprising charged species can be made to pass from a first side to a second side, wherein at least a portion of said first channel is exposed to the environment; at least one second sample microchannel through which said liquid comprising charged species can be made to pass from a first side to a second side, wherein at least a portion of said second channel is exposed to the environment, the separation between the exposed portions of said first sample microchannel and said second sample microchannel ranges between 50 micrometers and 1000 micrometers; at least one buffer microchannel or reservoir comprising a buffer; at least one conduit proximal to said sample microchannels and linked to said buffer microchannel or reservoir; and at least one unit to induce an electric field in said conduit, said sample microchannel, said buffer microchannel or reservoir or a combination thereof.