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. Author manuscript; available in PMC: 2013 Sep 27.
Published in final edited form as: J Phys Chem B. 2012 Sep 19;116(38):11656–11661. doi: 10.1021/jp307935g

Figure 5.

Figure 5

Carbon-13 Ramp-CP MAS NMR spectra of (a, b) powdered cortical bone and (c, d) demineralized bone samples recorded at a 13C NMR frequency of 226.3 MHz under 10 kHz MAS without Cu–EDTA (a, c) and with 30 mM Cu–EDTA (b, d). For each sample, the difference between the spectra obtained without and with Cu–EDTA is also shown. Other experimental and data processing details are mentioned in Figure 1 caption.