Author: J. P. Mannila

0000000001269015

AUTHOR

J. P. Mannila

showing 1 related works from this author

High-Performance Liquid Chromatographic Study on Oxidation Products of Lignin and Humic Substances

1991

We describe a convenient method of preparing samples and characterizing the mixture of degradation products obtained from alkaline cupric oxide oxidation of water samples containing lignin and humic substances. The method was applied to one unpolluted humic water sample and a total mill effluent of a kraft pulp mill. The fractions (Mr &gt; 1000) obtained by ultrafi1tration were oxidized and the products (mixtures of degradation products) were analyzed by reversed-phase high-performance liquid chromatography (Spherisorb 5 ODS column). Acetonitrile-0.01 M phosphate buffer (pH 2) was used as the eluent in a gradient system and UV (set at 280 nm) as the detection system. Differences in the …

Environmental EngineeringChromatographyElectrolysis of waterOxidecomplex mixturesWater samplechemistry.chemical_compoundColumn chromatographychemistryKraft processLigninDegradation (geology)EffluentWater Science and TechnologyWater Science and Technology

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