Figure 3
From: Release of organic nitrogen compounds from Kerogen via catalytic hydropyrolysis
Partial mass chromatograms (a) and (b) representing quinoline (m/z 129), (c) and (d) methylquinolines (m/z 143), and (e) and (f) C2-alkylquinolines (m/z 157) in polar non-hydrocarbon fractions isolated using C18 NEC SPE from the hydropyrolysates generated from solvent extracted Kimmeridge Clay Formation (samples KC3 and KC4, see Table 1).