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23 Determination of Acid-Soluble Lignin in Wood and Pulp [Pg.39]

The lignin content in the filtrate is calculated from the following expression of Beer s Law [Pg.39]

The acid-soluble lignin content in the wood or pulp sample is calculated from the expression [Pg.39]

4 Acid Hydrolysis of Annual Plants, Developing Wood, and Forage [Pg.40]

5 Determination of Acid-Insoluble Ugnin in Annual Plants, [Pg.41]