Patent ID: 8545773

Claim:
A device for detection of an analyte in a sample comprising: a multi-position selecting valve system for selection between one of the sample and at least one reagent, wherein the multi-position selecting valve system is fluidically connected to a second valve system accommodating at least two sensing channels each comprising a capillary column and a first bypass channel separate from the sensing channels; the second valve system being connected to a detector for detecting the analyte; a control system for controlling the position of the multi-position selecting valve system and the second valve system; and a directing valve system fluidically connected between the second valve system and the detector, the directing valve system having at least two positions, with a first position being connected to a second bypass channel and a second position being connected to the detector, wherein the second bypass channel is not fluidically connected to the detector, and further wherein the control system is further configured to control the directing valve system.