pegasus 4dThe Pegasus 4D GCxGC-TOFMS is a Comprehensive Two-Dimensional Gas Chromatography with Time-of-Flht Mass Spectrometer. GCxGC, combined with the Pegasus HT TOFMS, changes the dynamic when analyzing complexGCxGC, combined with the Pegasus HT TOFMS, changes the perspective of complex sample analysis. No longer limited to two analytical dimensions, the Pegasus 4D GCxGC-TOFMS