Fig. 28From: Recent progress in instrumental techniques for architectural heritage materialsa A cross-section of a Hinoki cypress showing sapwood and heartwood; b, c difference in TOF–SIMS spectra between sapwood and heartwood in Hinoki cypress; d–g positive TOF–SIMS spectra obtained from extractives of heartwood in Hinoki cypress [17], copyright (2008) American Chemical SocietyBack to article page