Dennis Vughs is an analytical chemical researcher focusing on the development and implementation of new analytical methods and techniques to protect chemical water quality. He specialises in liquid chromatography linked with high-resolution mass spectrometry and applies this to detect and identify new organic micropollutants in the water cycle. In doing so, he focuses mainly on polar “emerging contaminants” which pose a potential threat to water quality. An example is the development of a HILIC screening method, making it possible to detect and identify very polar substances in water. Dennis worked on the development of an innovative method to detect disinfection by-products by means of stable isotope labelling and high-resolution mass spectrometry.