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 complexLECO’s GCxGC thermal modulator is the key to the enhancement of chromatographic resolution obtained by the Pegasus 4D system. The modulator, placed between the two columns,