pegasus4dFor theory of operation, refer to the GCxGC Spec Sheet (209-184-001). For analytical parameters for the Pegasus BT, refer to the Pegasus BT Spec Sheet (209-251-001).identification from our Pegasus 4D (top) of an analyte with very different odor properties. The Pegasus GC-HRT 4D + (bottom) has improved the identification of this component to a more