Among the analyses we propose, siloxanes, H2S, total VOCs, permanent gases (CH4, CO2, N2, O2, CO, H2), VOCs (volatile organic compounds) are frequently ordered by screening, water, Fluor and chlorine, total sulphur…
We ship support equipment to our customers (Tédlar bag) to allow them to perform their own check-off. The client then sends his sample back to us, which is analyzed at our laboratory in the Lyonnaise region. Some clients sometimes ask us to conduct on-site, semi-continuous analyses. These analyses are performed by µGC/MS, or µGC/TCD (depending on the target compounds and quantification limits), for the duration our client wants (usually 3 or 5 consecutive days). This technology allows us to measure permanent gases (CH4, CO2, N2, O2, CO, H2), as well as H2S, and VOCs (present above 1 ppm) through a 5-minute analysis. It allows us to understand the stability of biogas over time, and to accurately measure day-night deviations.