Dr. John C. Fetzer has been doing liquid chromatographic method development for over 35 years. His PhD was in studies of various types of chromatography. He has authored or co-authored over 50 papers on LC separations, has served on the advisory boards of the Journal of Chromatography, Analytical Chemistry, and Analytical and Bioanalytical Chemistry. He supervised the Good Laboratory Practices accreditation of a large research chromatography laboratory and has taught numerous short courses on GLP and ISO 17025 compliance.