Model L2140-i - High-precision triple oxygen isotope analyzers
From Isotopic Analyzers
Enhance your understanding of present day climate and reconstruct climates of the past by measuring triple oxygen isotopes and hydrogen isotopes in water.
Simultaneous measurement of δ18O, δ17O, δD and 17O-excess in liquids and vapor
Push-button simplicity and ease
Average to better than 15 per meg precision on 17O-excess for 1 hour vapor measurements
Repeat measurements of liquids demonstrate 15 per meg precision on 17O-excess
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Figure 1 shows an Allan variance plot of water vap...
Figure 1 shows an Allan variance plot of water vapor measurements collected at 23,000 ppm. Averaged over one hour, the L2140-i delivers a precision of better than 15 per meg in 17O-excess. For liquid waters introduced to the L2140-i by the Picarro High-Precision Vaporizer (A0211), precision is also better than 15 per meg. Frequent calibration by waters with known isotopic compositions, should improve precision to better than 10 per meg.
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