The “Organic and Mineral Geochemistry” (GEOMIN) platform has a unique analytical facility in France, which allows the analysis of global organic matter (OM) (carbon and nitrogen rates in soils, sediments and water) down to the molecular level (lipid, sugar, pesticide, emerging pollutants, etc.) and isotopic (carbon, nitrogen, etc.). of carbon and nitrogen in soils, sediments and waters) down to the molecular scale (analyses of lipids, sugars, pesticides, emerging pollutants, etc.) and isotopic (δ2H, δ13C, δ18O). This platform also carries out the analysis of major ions, as well as other elements (Si, trace metals, etc.) in various matrices (water, sediments, etc.). These chemical analyses are carried out for all of the laboratory’s researchers on different types of samples.