Fig. 3. Solid-state ¹³C nuclear magnetic resonance spectra with cross-polarization magic-angle spinning (CPMAS NMR) of <16-mm trommel screen fines from (a) Alberni and (c) Lavington and (b) and (d) corresponding aqueous extracts. Lower spectra are with dipolar-dephasing (DD) or with dipolar-dephasing and total suppression of sidebands (DD–TOSS) as indicated.