pegasus4dConsult LECO's entire Pegasus BT 4D catalogue on . Page: 16. ® Quantitative Analysis Using the PEGASUS BT 4D By leveraging GC×GC’s superior chromatographicFor 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).