World's Highest Performance Water Vapor Isotope Analyzer
CRDS Analyzer for Isotopic Water - Model L1115-i
- Simultaneous, high precision measurements δ18O and δD
- δ18O < 0.1 0/00, δD <0.5 0/00 typical vapor performance
- Automated delivery of liquid standards for optimal calibration
- Rugged and insensitive to changes in ambient temperature
- Installed and operational in minutes
The Picarro CRDS Isotopic Water Analyzers provide 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 gas sampling at a remote location followed by analysis at a central laboratory using large, complex, expensive instrumentation such as IRMS (isotope ratio mass spectrometry). In contrast, the Picarro instruments are user-friendly, compact and rugged systems, ideal for deployment in the field or in the lab.
The L1115-i instrument is equipped with Picarro's novel Standards Delivery Module, a pump system that delivers calibrated liquid water standards into the vaporizer from reservoirs with greater reliability and less complexity and cost than an autosampler. Standards delivery can be scheduled for two standards at two concentrations and for various times using Picarro's straightforward GUI.
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 vapor measurements and have been deployed in forests, on mountains and in solar powered field stations. Further, if you would like to calibrate the instrument back at the lab with liquid standards from vials (or run other liquid samples), we also support autosampler operation for this analyzer.
Related Documentation
Video showing Picarro L1102-i measuring water isotopes on the Sacramento River.
Picarro's unmatched temperature and pressure control systems enable our Water Isotope analyzers to record data with precision and accuracy that is independent of fluctuating external conditions. These two data sets show that δ18O and δD are unaffected even when the external temperature is stepped over a wide range, ~5 °C through ~40 °C. We challenge any other water isotope system to demonstrate such outstanding performance.
Video showing Picarro analyzers going through severe shock and vibration tests before shipment.