摘要：

cf. F.A. 11 No. 1876. ] Records the infra-red spectra of wood sections both in the untreated state and after treatment for removal of lignin and hemi-cellulose. Differences between the spectra of hardwood (Acer rubrum) and softwood (Pseudotsuga taxifolia, Tsuga heterophylla, Picea sitchensis, Thuja plicata) sections were correlated with the greater glucomannan and smaller 4-O-methylglucuronoace...

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