LAboratoire de Spectrochimie Infrarouge et Raman – UMR 8516
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Plateform analyses of traces

The LASIR’s platform dedicated to the analyses of traces aims to measure concentrations of metallic, organometallic and organic species in both liquid and solid matrixes such as water, sediment or soils. Depending on the analytical technique, detection limits can reach the nmol L-1 range in natural water samples. Considering metals, it is also possible to envisage speciation studies either by the mean of upstream extraction, directly in the sample (electrochemistry) or on-line (e.g. by coupling a chromatographic system to a mass spectrometer). Such tools are necessary to understand the fate of contaminants that are present at trace levels in aquatic and terrestrial ecosystems as well as in aerosols. They can also be made available in many other fields such as food production, materials, healthcare etc…

In addition, the platform owns equipment for sample collection [corers, Niskin bottles, passive samplers such as DGT (Diffusive Gradient in Thin film), POCIS (Polar Organic Chemical Integrative System)…], sample preparation [oven, centrifuge, glove bag, freezer, thermostat cabinet…], contaminant extraction [ASE extractor, heating block…], and other small apparatus that allow measurement of additional parameters (pH, dissolved oxygen, redox potential, solid sulphur, alkalinity, anion by ion chromatography, dissolved organic carbon…).