Environmental Sensing of Aquatic Systems at the University of Geneva

Article Article scientifique Article Environmental Sensing of Aquatic Systems at the University of Geneva eng 2014 author Bakker Eric 716236 author Tercier Waeber Marie-Louise 0000-0002-5984-7930 22565 author Cherubini Thomas John 794124 author Crespi Miquel Coll author Crespo Paravano Gaston Adrian 744547 author Cuartero Botia Maria 822280 author Afshar Majid Ghahraman author Jarolimova Zdenka 796732 author Jeanneret Grosjean Stéphane 134756 author Mongin Sandrine 815608 author Neel Bastien Joël Alain 755101 Bastien Néel author Pankratova Nadezda 810666 author Touilloux Romain Yannick Claude 760851 author Xie Xiaojiang 713515 author Zhai Jingying 813315 772-777 10.2533/chimia.2014.772 0009-4293 Aquatic environments are complex living systems where biological and chemical constituents change rapidly with time and space and may exhibit synergistic interactions. To understand these processes, the traditional approach based on a typically monthly collection of samples followed by laboratory analysis is not adequate. It must be replaced by high-resolution autonomous in situ detection approaches. In our group at the University of Geneva, we aim to develop and deploy chemical sensor probes to understand complex aquatic systems. Most research centers around electrochemical sensing approaches, which involves: stripping voltammetry at gel-coated microelectrode arrays for direct measurements of bioavailable essential or toxic trace metals; direct potentiometry for the measurement of nutrients and other species involved in the nitrogen and carbon cycles; online desalination for oceanic measurements; the development of robust measurement principles such as thin layer coulometry, and speciation analysis by tandem electrochemical detection with potentiometry and dynamic electrochemistry. These fundamental developments are combined with instrument design, both in-house and with external partners, and result in field deployments in partnership with environmental researchers in Switzerland and the European Union. Electrochemical sensors Environmental monitoring (Micro-)nutrients/pollutants Nitrogen and carbon species Optodes Dewey 540 40 Département de chimie minérale, analytique et appliquée 145 false Chimia 68 11 4596bda7-ab87-4010-aaf8-65f1ab2c66ed Article (Published version) Public Environmental_EB_14.pdf 580928 application/pdf openAccess Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée

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Environmental Sensing of Aquatic Systems at the University of Geneva	Chimia			2014	213	276

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