LGR's Water Vapor Isotope Analyzer works seamlessly with LGR's Water Vapor Isotope Standard Source (WVISS), which provides a controllable flow of humid air with known isotope values for δ17O, δ18O and δ2H over a continuous range of H2O mole fractions (not just at a couple of concentrations). The Water Vapor Isotope Standard Source automatically and comprehensively characterizes the operation of the Water Vapor Isotope Analyzer (WVIA) in real time and without user intervention. Together, the WVIA and WVISS provide reliable, real-time, dual-inlet, absolute measurements of δ17O, δ18O and δ2H in ambient water vapor - no other combination provides comparable accuracy, precision and dynamic range. The rugged, field-portable packaging makes this instrument ideally suited for a myriad of hydrological, atmospheric science, medical, and industrial monitoring applications.
LGR’s new “Enhanced Performance" series incorporates proprietary internal thermal control for ultra-stable measurements with unsurpassed precision, accuracy and low drift. Moreover, only LGR’s analyzers provide reliable measurements (with guaranteed specs) at concentrations well above 60,000 ppm H2O in air. The Analyzer uses LGR’s patented Off-axis ICOS technology, a fourth-generation cavity enhanced absorption technique. Off-axis ICOS has many advantages over conventional cavity ringdown spectroscopy (CRDS) techniques such as being alignment insensitive, having a much shorter measurement time, and not requiring expensive and power consuming auxiliary components.
In response to many customer requests, the WVIA is now available in LGR’s “ultraportable” package (U-WVIA) which is compact, crushproof and travels anywhere. Small enough to be carried on-board aircraft (TSA approved), the U-WVIA offers opportunities to measure isotopic water vapor (δ18O and δ2H) anywhere.
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