Abstract
High and low resolution solid state NMR methods have been applied to characterise a few samples of ancient wood. In an ancient larch wood sample, by applying 1H low resolution NMR methods as a function of the temperature, the average pore size and its distribution have been determined. In addition, high resolution NMR techniques have allowed addressing of the question of the proximity of water pools to cellulose and lignin. In particular, a model can be hypothesized in which water pools are surrounded by thin layers of amorphous cellulose and/or lignin while the crystalline domains of cellulose surround the layers of amorphous cellulose. Preliminary results obtained using a fully non invasive and portable NMR unilateral relaxometer, the Eureka-Mouse10 (EM10), are reported. This instrumentation is shown to be perfectly suitable for characterizing degradation in ancient wood samples.
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Viel, S., Capitani, D., Proietti, N. et al. NMR spectroscopy applied to the Cultural Heritage: a preliminary study on ancient wood characterisation. Appl. Phys. A 79, 357–361 (2004). https://doi.org/10.1007/s00339-004-2535-z
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DOI: https://doi.org/10.1007/s00339-004-2535-z