pegasus 4dLECO’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,P BT 4DEGASUS® Delivering the Rht Results Analytical Performance GCxGC Detection Limit Snal to noise 10 for injection of 10 fg of OFN @ 200 spectrasec≥ IDL 5 fg for 8 replicate