By E. Sjöström (auth.), Prof. Dr. Eero Sjöström, Prof. Dr. Raimo Alén (eds.)
In its broadest experience, and based on the normal belief, wooden chemistry is a finished self-discipline, starting from basic reviews to sensible purposes. The manifold materials, positioned in several morphological areas within the wooden, leads to an severe complexity of wooden chemistry. Ever extra refined endeavors wanting basic reports and complicated analytical equipment are worthwhile so as to delve deeper into numerous difficulties in pulping and papermaking. steadily, new, greater ana lytical equipment, initially built for study reasons, are at the moment changing a number of the outdated "routine" tools in sensible functions. due to the expanse of the topic, an try and write a booklet of this measurement approximately analytical equipment turns out, might be, too bold. in fact, an entire booklet sequence of numerous volumes will be essential to disguise this subject thoroughly. despite the fact that, there's definitely a necessity for a extra condensed presentation which doesn't move into experimental information, yet is restricted to the fundamental rules of the analytical equipment and illustrates their applica tions. The emphasis is on extra complicated and capability equipment, and partic ularly on these in keeping with kinds of spectroscopy and chromatography.
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Extra resources for Analytical Methods in Wood Chemistry, Pulping, and Papermaking
Sample text
Nord Pulp Pap Res J 2: 101-105 Saka S, Hosoya S, St-Germain FGT, Goring DAI 1988 A comparison of the bromination of syringyl and guiacyl-type lignins. Holzforschung 42:79-83 Saka S, Whiting P, Fukazawa K, Goring DAI 1982 Comparative studies on lignin distribution by UV microscopy and bromination combined with EDXA. Wood Sci Techno! 16:269-277 Scott JAN, Procter AR, Fergus BJ, Goring DAI 1969 The application of ultraviolet microscopy to the distribution of lignin in wood. Wood Sci Techno! 3:73-92 Separation and Analysis of Wood Constituents 35 Sorvari J, Pietarila V, Nygren-Konttinen A, Klemola A, Laine JE, Sjostrom E 1983 Attemps at isolating and characterizing secondary wall and middle lamella from spruce wood (Pice a abies).
Nord Pulp Pap Res J 2: 101-105 Saka S, Hosoya S, St-Germain FGT, Goring DAI 1988 A comparison of the bromination of syringyl and guiacyl-type lignins. Holzforschung 42:79-83 Saka S, Whiting P, Fukazawa K, Goring DAI 1982 Comparative studies on lignin distribution by UV microscopy and bromination combined with EDXA. Wood Sci Techno! 16:269-277 Scott JAN, Procter AR, Fergus BJ, Goring DAI 1969 The application of ultraviolet microscopy to the distribution of lignin in wood. Wood Sci Techno! 3:73-92 Separation and Analysis of Wood Constituents 35 Sorvari J, Pietarila V, Nygren-Konttinen A, Klemola A, Laine JE, Sjostrom E 1983 Attemps at isolating and characterizing secondary wall and middle lamella from spruce wood (Pice a abies).
By this technique it is possible to remove gradually the cell wall layers beginning with P and S1 and then S2 (Kallmes 1960; Purina et al. 1994). The purity of the cell wall layers is, however, difficult to control. Even if the material from the primary wall can be recognized from its lack of birefringence, it is difficult to distinguish the material from the different layers of the secondary wall. Scanning electron microscopy of the peeled fibers can give an idea of how the peeling proceeds. 5%) can be used for removal of only residues from the middle lamella and primary wall of the fiber surface (Heijnesson et al.