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An improved acetyl bromide procedure for determining lignin in woods and wood pulps

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Summary

The acetyl bromide procedure for spectrophotometrically determining lignin in wood and wood pulp samples has been modified by adding perchloric acid to the digestion medium. This enables faster dissolution of the materials and the use of coarser samples. Subsequent treatment of the digestion mixtures with larger amounts of sodium hydroxide than those used in the conventional procedure has obviated the need for treatment with hydroxylamine. The modified method has been successfully applied to woodmeals and pulps from Pinus radiata and Eucalyptus species.

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Authors and Affiliations

  1. Division of Forestry and Forest Products, CSIRO, Private Bag 10, 3168, Clayton, Victoria, Australia

    K. Iiyama & A. F. A. Wallis

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  1. K. Iiyama
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  2. A. F. A. Wallis
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Iiyama, K., Wallis, A.F.A. An improved acetyl bromide procedure for determining lignin in woods and wood pulps. Wood Sci.Technol. 22, 271–280 (1988). https://doi.org/10.1007/BF00386022

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  • DOI: https://doi.org/10.1007/BF00386022

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