Jörg Bettmer is currently full professor of Analytical Chemistry at the University of Oviedo, Spain. He defended his doctoral thesis in Analytical Chemistry (supervisor Professor Karl Cammann) at the University of Münster, Germany, and later his habilitation (mentor Professor Klaus G. Heumann) at the University of Mainz, Germany. During that time and afterwards, he spent several research stays in various research centres like the University of Bordeaux in France, Complutense University of Madrid in Spain, Humboldt University of Berlin, Germany, and the Bundesanstalt für Materialforschung und -prüfung (BAM), Berlin. Since 2007, he has been working at the University of Oviedo. His main research interests are dedicated to the development of analytical methods based on mass spectrometry, especially ICP-MS. Here, the focus of applications is related to elemental speciation, metallomics, single cell analysis, and manufactured and biogenically produced nanomaterials. He has published more than 100 research papers, reviews, and book chapters, and delivered more than 50 invited lectures and short courses in various national and international conferences.