HAROLD A. WITTCOFF has taught industrial organic chemistry at the University of Minnesota while serving as Vice President of Corporate Research for General Mills, Inc. As scientific advisor to Nexant ChemSystems, he has presented 300 courses in industrial chemistry in twenty-eight countries. He is author/coauthor of 130 patents and sixty technical publications.

BRYAN G. REUBEN is Professor Emeritus of Chemical Technology at London South Bank University. He has worked on the research and commercial sides of the Chemical Division of Distillers Company, Ltd. (now BP Chemicals), and was a founding member of both Surrey and London South Bank Universities. He is author/coauthor of about 130 publications and a single patent.

JEFFREY S. PLOTKIN is Director of the Process Evaluation and Research Planning program at Nexant ChemSystems. He previously worked at Exxon Chemical and International Specialty Products (ISP) in both research and marketing positions. He is author/coauthor of about twenty-five technical publications and about thirty patents.