Formation and Identification of Unresolved Complex Mixtures in Lacustrine Biodegraded Oil from Nanxiang Basin, China

Figure 5

Qualitative diagram of compounds in classes III to VI. Left: GC/MS analysis; right: GC × GC/TOFMS analysis; TT: tricyclic terpane; TeT: tetracyclic terpane; H: hopane; G: gammacerane; P: pregnane; HP: homopregnane; DS: diasterane; SeT: sesquiterpane; PD: pentamethyl-naphthane; D: drimane; HD: homodrimane.