Table 2.
Results of GC-MS analysis of Amara West and reference samples, biomarkers. Pr/Ph = pristane/phytane, data taken from total ion chromatogram (TIC). All other data from m/z 191: Ts = 18α(H)-22,29,30-trinorhopane, Tm = 17α(H)-22,29,30-trinorhopane; GCR = gammacerane; Ol = oleanane; CnαβH = 17α,21β-hopane at Cn; C31R = 17α,21β-22R-30-homohopane at C31; C29αβH = 17α,21β-norhopane at C29; Cn = 17α,21β-22S + R-29-homohopane at Cn; C26/C25 TT = C26/C25 tricyclic terpanes. ND = no data.
| Pr/Ph (TIC) | Ts/Tm (m/z 191) | GCR/C30αβH (m/z 191) | Ol/C30αβH (m/z 191) | C31R/C30αβH (m/z 191) | C29αβH /C30αβH (m/z 191) | C35/C34 (m/z 191) | C26/C25 TT (m/z 191) | |
|---|---|---|---|---|---|---|---|---|
| AS1932 | 0.22 | 0.07 | 0.65 | 0.00 | 0.31 | 0.96 | 1.30 | 0.24 |
| AS1933 | 0.24 | 0.07 | 0.67 | 0.00 | 0.32 | 0.90 | 1.48 | 0.35 |
| AS1948 | 0.19 | 0.11 | 0.65 | 0.03 | 0.34 | 0.86 | 1.45 | 0.40 |
| AS1949 | 0.19 | 0.08 | 0.73 | 0.03 | 0.38 | 0.98 | 1.47 | 0.36 |
| AS1994 | 0.19 | 0.07 | 0.68 | 0.01 | 0.33 | 0.88 | 1.41 | 0.32 |
| PS295 | ND | 0.11 | 0.58 | 0.00 | 0.28 | 0.90 | 1.23 | 0.41 |
| PS152 | ND | 0.05 | 0.65 | 0.00 | 0.31 | 0.88 | 1.88 | 0.81 |
| PS121 | 0.07 | 0.31 | 0.25 | 0.14 | 0.53 | 1.04 | nd | 0.34 |
| PS119 | ND | 0.07 | 0.59 | 0.02 | 0.34 | 0.94 | 1.85 | 0.16 |
| PS415 | ND | 0.09 | 0.92 | 0.04 | 0.31 | 1.68 | 1.98 | 0.37 |
| Dead Sea reference | 0.20 | 0.08 | 0.62 | 0.01 | 0.32 | 0.93 | 1.52 | 0.49 |
| Gebel Zeit37 | 1.3 | 1.9 | 0.11 | 0.26 | ND | 0.4 | 0.8 | ND |