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ARS Home » Midwest Area » Madison, Wisconsin » U.S. Dairy Forage Research Center » Research » Publications at this Location » Publication #76714
Title: VALUABLE NMR METHODS FOR CHARACTERIZING LIGNINS AND LIGNIN COMPLEXES

Author
item Ralph, John

Submitted to: International Symposium on Wood and Pulping Chemistry
Publication Type: Abstract Only
Publication Acceptance Date: 6/9/1997
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Although lignin chemists now use a variety of one, two, and three- dimensional methods, some valuable experiments have been neglected or forgotten. This tutorial will illustrate: how to achieve the best long- range correlation results and their applications, the use of multiplicity- edited 2D sequences to improve the information content of short-range correlation experiments, the value of the under-utilized HMQC-TOCSY experiment, and other experiments. The superiority of complete digital systems that are becoming the commonly delivered spectrometers, the utilization of gradients in some of these experiments, and the advantages of high field strengths will also be covered.