Stavros Kromidas, PhD, works as an independent consultant for analytical chemistry, based in Saarbrucken (Germany). For more than 20 years he has regularly held lectures and training courses on HPLC, and has authored numerous articles and several books on various aspects of chromatography. He is the founder of NOVIA GmbH, a provider of professional training and consulting in analytical chemistry, and served as its CEO until 2001.