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Figure 4 | Geochemical Transactions

Figure 4

From: Release of organic nitrogen compounds from Kerogen via catalytic hydropyrolysis

Figure 4

Partial mass chromatograms (a) and (b) representing benzoquinolines (m/z 179) and (c) and (d) representing methylbenzoquinolines (m/z 193) in polar non-hydrocarbon fractions isolated from the hydropyrolysates generated from solvent extracted Kimmeridge Clay Formation (samples KC3 and KC4, see Table 1) using C18 NEC SPE. Key: 1 = benzo[h]quinoline (IX), 2 = acridine (X), 3 = benzo[f]quinoline (XI) + phenanthridine (XII).

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