Search results for "Proton nmr spectroscopy"

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NMR Study of Kraft Pulp Mill Waste and Natural Humic Substances

1988

High field proton NMR spectroscopy in DMSO-d6 solution is applied for structural analysis of main high molecular fractions of natural humus and waste lignin from kraft pulp mill. The spectra are similar in great part. Main differences appear in p-disubstituted benzene proton and -CH2 -CO-proton signals which are absent in spectrum of waste lignin obviously due to chlorination. A new observation of 51 Hz 1:1:1 triplet in both spectra is discussed.

Proton nmr spectroscopychemistry.chemical_compoundchemistryWaste managementKraft processPulp bleachingLigninHigh fieldPulp and paper industryBenzeneHumus

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