Diamondoid Hydrocarbons as Maturity Indicators for Condensates from Southern Indus Basin, Pakistan

Figure 3

Total ion chromatograms from GC-MS analysis showing distribution of n-alkanes and isoprenoids (Pr and Ph) in condensates from the Southern Indus Basin. C₈–C₃₃ represents n-alkanes with carbon atoms 8–33. Pr and Ph = Pristane (Ph) and Phytane (Ph) are C₁₉ and C₂₀ regular acyclic isoprenoids which elute after C₁₇ and C₁₈  n-alkanes.