**About the Editors**

#### **Ian Southwell**

Ian Athol Southwell (Adjunct Professor in Plant Science at Southern Cross University, Lismore, Australia) completed a B.Sc. (Hons.) degree in 1967, an M.Sc. at the University of Sydney, Australia, and then a Ph.D. in 1982 at the University of Manchester Institute of Science and Technology. He has been engaged in plant chemistry research and development for more than 50 years, specialising in Australian essential-oil-bearing plants. Most of this research was conducted as a government research scientist in Australia, except for his PhD and postdoctoral appointments in Manchester, UK, and Indiana, USA. Ian has co-authored some 200 research papers, conference presentations, industry reports and book chapters, including co-editing "Tea Tree, the genus *Melaleuca*" for the "Medicinal and Aromatic Plants Industrial Profiles" series, in which he also co-edited the *Eucalyptus* Chemistry chapter for their *Eucalyptus* volume. He contributes to the international industry by assisting with overseas aid programmes, speaking at workshops and conferences and sitting on a number of essential oil committees and boards including the ISO Essential Oil Committee. At present, he is an Adjunct Professor in Plant Science at Australia's Southern Cross University.

#### **Oscar N ´u ˜nez**

Oscar Nu´nez (Full Professor in Analytical Chemistry) studied chemistry at the University of ˜ Barcelona, where he also received his PhD in 2004. He worked as visiting researcher for half a year in the development of online pre-concentration methods using micellar electrokinetic chromatography (MEKC) at the University of Hyogo (Japan) in collaboration with Professor Terabe (father of the MEKC technique). Starting in October 2005, he joined the Kyoto Institute of Technology (Japan) as a two-year post-doc researcher working with Professor Tanaka in developing monolithic silica capillary columns under a fellowship from the Japan Society for the Promotion of Science. In November 2007, he joined the University of Barcelona again, and since June 2021, he has been a Full Professor in Analytical Chemistry (Department of Chemical Engineering and Analytical Chemistry, University of Barcelona). He has more than 150 scientific papers and book chapters to his name, and he is editor of six books on chromatographic and related separation techniques, LC-MS/MS, and sample preparation techniques in food and environmental analysis and capillary electrophoresis. He has participated, with more than 200 contributions, in international and national scientific congresses. He has extensive experience in the development of liquid chromatography methods with ultraviolet and fluorescence detection, liquid chromatography coupled to low- and high-resolution mass spectrometry, as well as in sample treatment procedures, for environmental and food analysis. His major research areas nowadays involve the development of analytical methodologies in combination with chemometric techniques for the characterization, classification, and authentication of food and natural products, as well as the prevention of food frauds.. . .
