When dedicated automated thermal desorption is needed, the combined unit with both a thermal desorber and autosampler in one instrument is the instrument-of-choice. The system has the same performance characteristics as the Unity-Ultra combination, and may automatically add internal standard to the TD tubes, perform automated re-collection of the running samples.
The system does not need an injector on the GC side as the excellent focusing characteristics of the cold trap ensure focusing of even the smallest components.
This instrument does not combine with the headspace or the Air Server option.