A Raman microprobe system has been successfully utillized to obtain luminescence‐free spectra from sections of woody tissue. The procedures for optimizing the microprobe and the sample mounting techniques are described. Spectra from the secondary wall of black spruce (Picea mariana) indicate that both lignin and cellulose can be studied in their native state.
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Atalla et al. (1986) studied this question.
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