Microfluid system with compensation for electrophoretic polarization, electropipettor, processes for introducing materials from a series of sources into a microfluidic system, for controllably distributing a fluid stream and for transporting fluid samples, sampling system, use of a substrate , use of a microfluidic system, and substrate.

摘要

"MICROFLUID SYSTEM WITH COMPENSATION FOR ELECTROPHORETIC POLARIZATION, ELECTROPIPETER, PROCESSES FOR INTRODUCING MATERIALS FROM A SERIES OF SOURCES IN A MICROFLUID SYSTEM, TO DISTRIBUTE A FLUID AND FLUID CHAIN IN A CONTROLLABLE MANUFACTURE, SUBSTRATE, USE OF A MICROFLUID SYSTEM, AND, SUBSTRATE ". A channel (140) is divided into parts (142, 144). The side walls of each channel part (142, 144) have surface charges of opposite polarity. The two channel parts (142, 144) are physically connected to each other by a salt bridge (133), such as a glass frit or gel layer. The salt bridge (133) separates the fluids in the channel (140) from an ionic fluid reservoir (135). In order to print electroosmotic forces and electrophoretic forces along the channel (140) between parts A and B, respectively. In addition, a third electrode (137) is placed in the reservoir (135).