Soil Gas Sampling System
A flexible, field-deployable gas probe array for monitoring biogeochemical changes in ecological and agricultural research.
Real-time Soil Analysis for Trace Gas Detection
Spatiotemporal mapping of subsurface trace gases (including isotopes) and volatile organic compounds provides valuable insights into biogeochemical cycling, but very few methods measure in-situ soil gases.
Agronomy
Agronomy
Soil Gas Sampling System
A flexible, field-deployable gas probe array for monitoring biogeochemical changes in ecological and agricultural research.
The Aerodyne Gas Sampling System includes our multi-sample selector (MSS), soil probes and must be used in conjunction with an array of instruments depending on the measurements needed. These include our TILDAS instruments, the Vocus CI-TOF, and the Vocus CI-TOF with our Gas Chromatograph. The Aerodyne Field Enclosure can also be added to conduct year-round measurements (fits TILDAS instruments.)
How it works
Non disruptive soil probes collect gas samples via diffusion. Gas sample is transferred to the Multi Sample Selector (MSS) which uses multiport selector valves to connect a single analyzer to up to 16 probes!
Soil Gas Sampling System Accessories
Field Enclosure
Rugged, field-ready with a corrosion free design. Ideal for long-term deployments.
Soil Probes
Diffusive exchange across a hydrophobic membrane
- Robust hydrophobic porous membrane prevents water breakthrough over months of in-ground use
- Soil gas enters probe through diffusion
- Flow control transfers the sample to the instrument avoiding advective perturbation
- Rugged for long term deployments
- Non-destructive
- Small, low profile
- Spatially and temporally-resolved dynamics with high signal-to-noise
- Developed in partnership with University of Arizona (Meredith Group)
Multi Sample Selector (MSS)
Automated and multiplexed sampling
- Allows up to 16 soil probes to be connected to the sampling system
- Can be run on an automatic sampling schedule and monitored/controlled remotely
- Contains VICI valves inside weatherproof enclosure
