Patent ID: 7959801
Filing Date: 2011-06-14
Classification: G01N

Abstract:
1. A device for generating micro- and nanoflow mobile phase gradients for high performance liquid chromatography, comprising: a generator of micro- and nanoflows of at least two mobile phases in different percentage compositions; an n-position gradient distributor having an inlet port, an outlet port and n couples of ports for a like number of capillary loops, each of the capillary loops being selectively connectable at a first end with the inlet port and at a second end to the outlet port, the second end being connectable to an analytical circuit comprising a chromatographic column and a detector; a micro- and nanoflow meter connected to said analytical circuit; a flow deviator having its inlet connected to the outlet of said gradient distributor, a first outlet connected to discharge and a second outlet connected to said micro- and nanoflow meter; and a control unit comprising,