Gas chromatography is widely used technique in the field of chemical analysis. It is one of the most powerful separation techniques. In combination with powerful FT-IR Instruments low noise level data can be achieved (S/N > 1000/1) within sampling times of less than 1 second. Such data rates are needed to follow the eluents separated by GC using high resolution capillary columns. The system provides the user with a choice of capillary column types, all as part of a highly inert, integrated system.