Continuous Water Sampler

Continuous Water Sampler

The first commercially-available device for real-time continuous analysis of δ18O and δ2H in liquid water.

  • No discrete sampling required. Pump directly from your water source – in a boat, on a river, from a rain collector.
  • Continuously monitor real-time changes in water isotopes using a simple, automated solution coupled to a Picarro L2130-i.
  • Probe estuary mixing, large-scale precipitation events, ocean dynamics and more.
  • Automated switching from samples to standards for calibration.
  • Quick and easy field deployment.

At the heart of the Picarro Continuous Water Sampler (CWS) is a porous membrane that enables diffusive sampling of water isotopes. By tightly controlling the physical factors that affect fractionation of liquid to vapor across a membrane, the CWS, when coupled to a Picarro L2130-i, achieves stable and repeatable results from an automated analysis system. Measure water isotopes continuously in estuaries, streams, on ocean transects and more!