Patent ID: 6620625
Filing Date: 2003-09-16
Classification: B01J,B01L,C12Q,C40B,G01N,Y10T

Abstract:
A method of sampling compounds into a microfluidic channel, comprising:providing a plurality of different compounds reversibly immobilized on a first surface of a substrate; providing a capillary element having a microfluidic channel disposed therethrough, the capillary element having at least one open end, and a volume of solubilizing fluid present at the open end of the capillary element; moving the solubilizing fluid at the open end of the capillary element into contact with a first compound on the surface of the substrate; sensing when the solubilizing fluid contacts the surface of the substrate, the solubilizing fluid dissolving at least a portion of the first compound; and drawing at least a portion of the dissolved first compound into the capillary element.