The GC-IR Interface for Nicolet FT-IR spectrometers blends the separation capability of gas chromatography with the identification power of FT-IR to provide an effective and efficient tool for analyzing complex mixtures. It is optimized for the analysis of small elution volumes found in today's high-resolution capillary columns, providing excellent sensitivity for compounds typically in the low nanogram range for volatile species. The module consists of an optimized second compartment attached to the collimated beam port of any Nicolet FT-IR Series optical bench.
It is also effective for the analysis of multicomponent organic samples such as solvents, chemicals, pharmaceuticals, petrochemicals and environmental samples. The module features permanently aligned optics in the interface that leave the standard sample compartment free for other applications. It is designed for direct insertion of the capillary column into the lightpipe, which eliminates component degradation and peak broadening in the transfer line.
The module's independent programmable temperature controllers for the light pipe and transfer lines allow the user to precisely control the experiment. The insulated transfer line and light pipe prevent cold spots and condensation. Thermo provides patented, high-sensitivity MCT-A detectors that are pinned-in-place and can easily be interchanged with the spectrometer without realignment. The GC-IR Interface Module detectors feature a patented mechanism that prevents the formation of ice on the detector element and provide an 18-hour liquid nitrogen hold-time.