Patent ID: 8337704
Filing Date: 2012-12-25
Classification: B03C,G01N

Abstract:
1. A liquid system (LS) comprising: a first and a second inlet, a rotary valve switching unit suitable for producing two different fluid connecting states, an extractor with an entry port and an exit port, and with a controllable device which can be used to temporarily apply a local magnetic field, wherein the extractor comprises a fluid connecting line between the entry port and the exit port, and the controllable device is capable of temporarily applying a local magnetic field to two or more consecutive sections of the line, at least one pressure-generating means, an injection device, two storage containers for a first and a second mobile phase in a liquid state of aggregation, a collecting vessel, and an outlet, wherein the first inlet is designed such that the first mobile phase can be fed under pressure from the first storage container to the rotary valve switching unit via a fluidic connection; the first inlet is additionally fluidically connected to an injection device, the injection device being designed such that it allows a mixture of liquid sample material and microparticles suspended therein to be introduced into the first mobile phase that was introduced through the first inlet; the second inlet is designed such that the second mobile phase can be fed under pressure from the second storage container to the rotary valve switching unit via a another fluidic connection; the first inlet is fluidically connected to a first entry port of the rotary valve switching unit and the second inlet is fluidically connected to a second entry port of the rotary valve switching unit; the entry port of the extractor is fluidically connected to a first exit port of the rotary valve switching unit and the exit port of the extractor is fluidically connected to a third entry port of the rotary valve switching unit; a second exit port of the rotary valve switching unit is the outlet or is fluidically connected to the outlet; a third exit port of the rotary valve switching unit is fluidically connected to the collecting vessel; and the rotary valve switching unit is suitable in a first connecting state (I) for fluidically connecting the first entry port and the first exit port, the second entry port and the second exit port as well as the third entry port and the third exit port and in the second connecting state (II) it is suitable for fluidically connecting the second entry port and the first exit port, the third entry port and the second exit port as well as the first entry port and the third exit port.