%0 Conference Proceedings %F Poster %T Field continuous measurement of dissolved gases with a CF-MIMS:Applications to the physics and biogeochemistry of groundwater flow %+ Géosciences Rennes (GR) %+ University of Guelph %A Chatton, Eliot %A Labasque, Thierry %A Bondet de La Bernardie, Jérôme %A Guihéneuf, Nicolas %A Bour, Olivier %A Aquilina, Luc %< avec comité de lecture %B European Geosciences Union General Assembly 2017 %C Vienne, Austria %V 19 %P EGU2017-14988 %8 2017-04-23 %D 2017 %Z Sciences of the Universe [physics]/Earth Sciences/Hydrology %Z Sciences of the Universe [physics]/Earth Sciences/GeochemistryConference poster %X In the perspective of a temporal and spatial exploration of aquatic environments (surface and ground water),we developed a technique for precise field continuous measurements of dissolved gases (N2, O2, CO2, CH4,N2O, H2, He, Ne, Ar, Kr, Xe). With a large resolution (from 110-9 to 110-2 ccSTP/g) and a capability ofhigh frequency analysis (1 measure every 2 seconds), the CF-MIMS (Continuous Flow Membrane Inlet MassSpectrometer) is an innovative tool allowing the investigation of a large panel of hydrological and biogeochemicalprocesses in aquatic systems.Based on the available MIMS technology, this study introduces the development of the CF-MIMS (conception forfield experiments, membrane choices, ionisation) and an original calibration procedure allowing the quantificationof mass spectral overlaps and temperature effects on membrane permeability.This study also presents two field applications of the CF-MIMS (Chatton et al, 2016) involving the well-logging ofdissolved gases and the implementation of groundwater tracer tests with dissolved 4He. The results demonstratethe analytical capabilities of the CF-MIMS in the field. Therefore, the CF-MIMS is a valuable tool for the fieldcharacterisation of biogeochemical reactivity, aquifer transport properties, groundwater recharge, groundwaterresidence time and aquifer-river exchanges from few hours to several weeks experiments.Eliot Chatton, Thierry Labasque, Je ́roˆme de La Bernardie, Nicolas Guihe ́neuf, Olivier Bour and LucAquilina; Field Continuous Measurement of Dissolved Gases with a CF-MIMS: Applications to the Physics andBiogeochemistry of Groundwater Flow; Environmental Science & Technology, in press, 2016. %G English %L insu-01534039 %U https://insu.hal.science/insu-01534039 %~ INSU %~ UNIV-RENNES1 %~ UR2-HB %~ CNRS %~ GR %~ OSUR %~ GIP-BE %~ UR1-HAL %~ UR1-SDLM %~ GR-DIMENV %~ UNIV-RENNES2 %~ TEST-UNIV-RENNES %~ TEST-UR-CSS %~ UNIV-RENNES %~ INRAE %~ UR1-ENV %~ GR-ET %~ GR-TERA %~ TEST3-HALCNRS %~ TEST4-HALCNRS %~ TEST5-HALCNRS