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Titlebook: Analytical Methods in Wood Chemistry, Pulping, and Papermaking; Eero Sj?str?m,Raimo Alén Book 1999 Springer-Verlag Berlin Heidelberg 1999

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樓主: Coarse
21#
發(fā)表于 2025-3-25 03:54:30 | 只看該作者
Analysis of Bleach Liquors,y complex mixture of substances varying in chemical structure and molecular weight. The interest has particularly been focused on methods for monitoring the formation and discharge of chlorinated organic matter. Methods for determination of both sum parameters and specific compounds have been developed for this purpose.
22#
發(fā)表于 2025-3-25 09:16:04 | 只看該作者
23#
發(fā)表于 2025-3-25 13:24:59 | 只看該作者
Eero Sj?str?m,Raimo AlénImportant for everyone in the paper making and wood processing industry
24#
發(fā)表于 2025-3-25 16:54:53 | 只看該作者
Springer Series in Wood Sciencehttp://image.papertrans.cn/a/image/156636.jpg
25#
發(fā)表于 2025-3-25 23:41:47 | 只看該作者
26#
發(fā)表于 2025-3-26 01:42:45 | 只看該作者
Ettore Majorana International Science Series of the wood sample before analysis can lead to unreliable results because of contamination with tissues not typical of the expected normal wood. Guidelines for the selection of wood material are given in the first part of this chapter. The discussion is limited to stem wood.
27#
發(fā)表于 2025-3-26 07:11:21 | 只看該作者
Dynamical Processes in Disordered Systems, formed of about 100 cellulose chains, are embedded in a matrix of hemicelluloses and lignin. Pores in the matrix are small and enable transfer of water, salts, and small organic molecules only. Although the hemicelluloses are at least partly water soluble, they cannot diffuse out of the cell wall due to their molecular size.
28#
發(fā)表于 2025-3-26 09:44:53 | 只看該作者
Separation and Analysis of Wood Constituents with Respect to Their Morphological Location, of the wood sample before analysis can lead to unreliable results because of contamination with tissues not typical of the expected normal wood. Guidelines for the selection of wood material are given in the first part of this chapter. The discussion is limited to stem wood.
29#
發(fā)表于 2025-3-26 15:50:21 | 只看該作者
Carbohydrates, formed of about 100 cellulose chains, are embedded in a matrix of hemicelluloses and lignin. Pores in the matrix are small and enable transfer of water, salts, and small organic molecules only. Although the hemicelluloses are at least partly water soluble, they cannot diffuse out of the cell wall due to their molecular size.
30#
發(fā)表于 2025-3-26 19:38:43 | 只看該作者
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