P2.1.14 Detection of toxic chromium species in water using cellbased sensor systems

Ulrich Bohm, Andreas Mucha, Evamaria Stütz, Meinrad Schienle, Maximilian Fleischer, Carl F. Werner, Matthias Bäcker, Christoph Krumbe, Michael J. Schöning & Patrick Wagner
In this study, several cell-based sensor systems have been evaluated and compared for their usability as environmental sensors in aquatic systems. Toxic chromium(VI) ions as well as non-toxic chromium(III) ions have been used as model substances, since chromium pollutions are of major concern. The investigated systems perform impedance, acidification and oxygen consumption measurements as well as combinations of these parameters. With multi-parametric sensor systems, the detection of Cr(VI) contamination is possible even at the limit...