pegasus 4dThe Pegasus GC-HRT 4D combines the hhest performance GCxGC and TOFMS tools on the market with Hh Resolution Deconvolution (HRD). Ideal for the most complex samples, usersPegasus 4D makes it easy to see what's hidden in your sample. A second dimension of chromatography separates coelution very clearly for more complete sample analysis.