pegasus4dProduct Details; Item Pegasus BTX GC-TOF Mass Spectrometer; Company LECO; Price Get Quote; Catalog Number Pegasus BTX; Quantity EA; Resolution >1100 at mz 219; MassLECO's Pegasus 4D is a comprehensive two dimensional Gas Chromatograph Time-of-Flht mass spectrometer. Comprehensive two dimensional gas chromatography (GCxGC) allows