The World's highest performance isotopic water analyzers!

WS-CRDS Analyzer for Isotopic Water - Models L1102-i and L1115-i

  • Both models support vapor and liquid measurements out of the box
  • Simultaneous, high precision measurements δ18O and δD
    • δ18O < 0.07 0/00, δD <0.2 0/00 typical liquid performance
    • δ18O < 0.1 0/00, δD <0.5 0/00 typical vapor performance
  • Minimal and consistent memory, even after large changes in delta values
  • Rugged and insensitive to changes in ambient temperature
  • Installed and operational in minutes

The Picarro WS-CRDS Isotopic Water Analyzers provides both δ18O and δD stable isotope ratios with high precision in one fast measurement. Isotope ratios at these precision levels formerly could only be obtained by the use of large, complex, expensive instrumentation such as IRMS (isotope ratio mass spectrometry) which required extensive sample preparation and a trained instrument technician. In contrast, the Picarro instruments are user-friendly, compact and rugged systems.

All analyzers are equipped with a thermally controlled optical cavity that ensures minimal drift. In addition, an onboard wavelength monitor enables the absorption lines unique to H216O, H218O, and HD16O to be scanned repeatedly, quickly and precisely.

The Picarro Isotopic Water Analyzers are ideal for applications as diverse as climate studies, paleoclimate reconstructions, isotopes in precipitation, ground and surface water tracers, aquifer dynamics, bird migration mapping, analytical hydrology tests, and metabolic activity monitoring, to name just a few.

Related Documentation

Isotopic Water Measurements the Picarro Way


    Video showing Picarro L1102-i measuring water isotopes on the Sacramento River.

Samples from groundwater locations with multiple injections of each location. The four locations provided a range of both δ18O and δD values which demonstrates the instrument's ability to transition with minimal memory. The expansion shows the excellent precision achieved for the repeated injections, even through hours of operation.

High-resolution spectrum of all of the relevant water isotopologues.