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. 2017 Feb 22;202(0):175–195. doi: 10.1039/c7fd00070g

Fig. 6. Analysis of the bio-crude fractions: (a) the carbon : hydrogen ratio and nitrogen content of the bio-crude with a varied plastic content; (b) GC analysis of the bio-crude derived from Ulva; (c) the ratio of CH2 to CH3 moieties estimated from the 1H NMR; (d) % fossil carbon in the bio-crude.

Fig. 6