pegasus 4dComprehensive Two-Dimensional Gas Chromatography with Time-of-Flht Mass Spectrometer. GCxGC, combined with the Pegasus HT TOFMS, changes the perspective of complex sampleLECO provides the solution for complex sample analysis with the Pegasus 4D, the pre-eminent MS detector for Comprehensive Two-Dimensional GC (GCxGC).