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Method for rapid determination of the contents of lignin, monosaccharides and organic acids in the process solutions of sulfite pulping
Method for rapid determination of the contents of lignin, monosaccharides and organic acids in the process solutions of sulfite pulping
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机译:快速测定亚硫酸盐制浆工艺溶液中木质素,单糖和有机酸含量的方法
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摘要
A method for rapid determination of the contents of lignin, monosaccharides and organic acids in the process solutions of sulfite pulping. Accordingly, any non-ionized compounds that disturbs the measurement of these concentrations are separated from the lignin material by an ion-exclusion technique. The measurements of concentrations are carried out by means of the UV-method, refractive- index method, and/or by means of the polarimetric method. The method of the present invention is usable for the controlling of sulfite cooking or other pulping or by-product production processes as well as for the characterization of the spent liquor.
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