Patent ID: 8499615
Filing Date: 2013-08-06
Classification: G01N

Abstract:
1. A gas chromatograph in which a material sample is conductable through a first separating device and subsequently conductable through a second separating device by a carrier gas, the gas chromatograph comprising: a pressure regulator configured to regulate a pressure of the carrier gas introduced into the first separating device; a controllable switching device for discharging components of the material sample from a path to the second separating device, the switching device being arranged between the first and second separating devices and comprising: a further flow resistor arranged in a path section containing the controllable valve, in series with the controllable valve and the flow resistor in parallel with the controllable valve; wherein the inlet of the first and second auxiliary gas paths is connected to the outlet of the pressure regulator; and wherein the plurality of flow resistors and the further flow resistor are fixed resistors.