Prof. Dr. rer. nat. Torsten Claus Schmidt Universität Duisburg-EssenFakultät für Chemie / Water Science Analytics, Analytische Chemie, Chemistry, Chromatographic trace analysis, Gas chromatography, Beverages, High-performance liquid chromatography, Instrumental analytical chemistry, Isotopic analysis, Isotopic mass spectrometry, Pollutant dynamics, Water analysis, Water science, Wine