Patent ID: 7824478
Filing Date: 2010-11-02
Classification: G01N

Abstract:
1. A chromatographic system, comprising: a carrier gas inlet for supplying carrier gas; a chromatographic column for receiving the carrier gas; a flow path through which the carrier gas is communicated from said carrier gas inlet to said chromatographic column; a vessel disposed in said flow path, said vessel having at least one adsorbent disposed therein, wherein said vessel has an inlet and an outlet for communicating the carrier gas through said vessel; and at least one sensor in communication with said flow path, the at least one sensor providing at least one measurement; and wherein the system determines a differential pressure from the vessel inlet to the vessel outlet based on the at least one measurement and provides a unit flow per unit pressure for the carrier gas in said vessel based on at least the differential pressure and a flow rate at the vessel outlet.